• A new chitinozoan species from the Middle Ordovician of EstoniaNõlvak, JaakEstonian journal of earth sciences2012 / p. 131-132 : ill https://artiklid.elnet.ee/record=b2497395*est
• A new chitinozoan species from the Upper Ordovician of the East BalticNõlvak, JaakEstonian journal of earth sciences2007 / 1, p. 63-64 : ill
• Age constraints of the Hungshihyen Formation (Early to Middle Ordovician) on the western margin of the Yangtze Platform, South China : new insights from chitinozoansLiang, Yan; Wang, Guang-Xu; Servais, Thomas; Wu, Rong-Chang; Nõlvak, Jaak; Hints, Olle; Weif, Xin; Gong, Fang-YiPalaeoworld2020 / p. 66-74 : ill https://doi.org/10.1016/j.palwor.2019.05.008 https://www.scopus.com/sourceid/4700151602 https://www.scopus.com/record/display.uri?eid=2-s2.0-85067510885&origin=inward&txGid=a3eb483906a80363fcfa00f76290cc52 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=PALAEOWORLD&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000518613600004
• Age of Estonian kukersite oil shale - Middle or Late Ordovician?Hints, Olle; Nõlvak, Jaak; Viira, ViiveOil shale2007 / 4, p. 527-533 : ill https://artiklid.elnet.ee/record=b2376556*est
• An example of a regional geological database and its application for analyzing diversity patterns of Ordovician and Silurian chitinozoans of BaltoscandiaHints, Olle; Antonovitš, Liina; Nestor, Viiu; Nõlvak, JaakOrdovician By The Lakes : International Geoscience Programme Project 653 - Opening Meeting2016 / p. 19-20 http://www.igcp653.org/wp-content/uploads/2016/03/A5-Programme-FINAL-WEB-2-REDUCED.pdf
• Assessing the quality of Baltoscandian chitinozoan biozones using quantitative stratigraphy [Online resource]Hints, Olle; Antonovitš, Liina; Nõlvak, Jaak; Liang, YanTrekking Across the GOBE : From the Cambrian through the Katian, June 3-7, 2018 : program & abstracts2018 / p. 39 https://igcp653athens2018.files.wordpress.com/2018/05/conference-programabstracts-sm1.pdf
• Baltic Ordovician and Silurian chitinozoans : a quantitative stratigraphic synthesisAntonovitš, Liina; Nestor, Viiu; Nõlvak, Jaak; Hints, Olle; Martma, Tõnu; Kiipli, TarmoIGCP 591 : The Early to Middle Paleozoic Revolution : Closing Meeting, Ghent University, Belgium, 6-9 July 2016 : abstracts2016 / p. 22
• Biostratigraphic (graptolites, chitinozoans, acritarchs, brachiopods) and chemostratigraphic (delta13C) correlations between latest Ordovician strata in Laurentia and BalticaDelabroye, A.; Vecoli, M.; Nõlvak, Jaak; Uutela, AThe Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 15
• Boundary between the Porkuni and Juuru regional stages in the Neitla section, EstoniaMännik, Peep; Nõlvak, JaakEstonian journal of earth sciences2023 / p. 66-69 : ill https://doi.org/10.3176/earth.2023.52 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-85164590538&origin=inward&txGid=9cb21391b64c26e718aeceb07245dede https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:001015399200002
• A brief overview of the history and geology of TallinnNõlvak, Jaak15th Meeting of the Association of European Geological Societies "Georesources and public policy : research, management, environment" : 16-20 September 2007, Tallinn, Estonia : excursion guidebook2007 / p. 5-9 : ill., map https://www.ester.ee/record=b2291671*est
• CHITDB : a database for documenting and analysing diversification of Ordovician-Silurian chitinozoans in the Baltic regionHints, Olle; Antonovitš, Liina; Bauert, Garmen; Nestor, Viiu; Nõlvak, Jaak; Tammekänd, MairyLethaia2018 / p. 218 - 227 https://doi.org/10.1111/let.12249 https://www.scopus.com/sourceid/13956 https://www.scopus.com/record/display.uri?eid=2-s2.0-85031325671&origin=inward&txGid=e77ec8b4cbe6f429fc7577df25507f4d https://jcr.clarivate.com/jcr-jp/journal-profile?journal=LETHAIA&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000428449700008
• Chitinozoan biostratigraphy in the Haljala Regional Stage, Upper Ordovician: A high-resolution approach from NE EstoniaBauert, Garmen; Nõlvak, Jaak; Bauert, HeikkiGFF2014 / p. 26-29 : ill https://doi.org/10.1080/11035897.2013.857715 https://www.scopus.com/sourceid/25844 https://www.scopus.com/record/display.uri?eid=2-s2.0-84901189407&origin=inward&txGid=ea2001acac5d4ee865c758bcf61e995d https://jcr.clarivate.com/jcr-jp/journal-profile?journal=GFF&year=2014 https://www.webofscience.com/wos/woscc/full-record/WOS:000335945500006
• Chitinozoan biostratigraphy in the Ordovician of BaltoscandiaNõlvak, Jaak2002 http://www.ester.ee/record=b1035650*est
• Chitinozoan biostratigraphy of the Upper Ordovician D. clingani and P. linearis graptolite biozones on the Island of Bornholm, DenmarkVandenbroucke, Thijs R. A.; Recourt, Philippe; Nõlvak, Jaak; Nielsen, Arne T.Stratigraphy2013 / p. 281-301 : ill https://biblio.ugent.be/publication/5645860
• Chitinozoan dynamics and biostratigraphy in the Väo Formation (Darriwilian) of the Uuga Cliff, Pakri Peninsula, NW EstoniaTammekänd, Mairy; Hints, Olle; Nõlvak, JaakEstonian journal of earth sciences2010 / 1, p. 25-36 : ill https://artiklid.elnet.ee/record=b1965715*est
• Chitinozoan response to a gigantic Late Ordovician volcanic ash fall recorded in northern EstoniaHints, Olle; Bauert, Garmen; Grigorjeva, Irina; Nõlvak, Jaak; Meidla, Tõnu; Perrier, Vincent10th Baltic Stratigraphic Conference : Checiny, 12-14 September 2017 : abstracts and field guide2017 / p. 34-35 http://geo.uw.edu.pl/tl_files/publikacje/10th_Baltic_Stratigraphic_Conference_Abstracts_and_Field_Guide.pdf
• Chitinozoan study : review and prospectLiang, Y.; Tang, P.; Hints, Olle; Nõlvak, Jaak; Zhang L.; Chen, Y.Acta Palaeontologica Sinica2023 / p. 436-450 https://doi.org//10.19800/j.cnki.aps.2023003
• Chitinozoans with “skirt”: Ultrastructure and palaeoecological implications of carina in Cyathochitina Eisenack, 1955Wang, Wenhui; Liang, Yan; Lyu, Qiao; Hints, Olle; Chen, Shefa; Nõlvak, JaakPalaeogeography, palaeoclimatology, palaeoecology2021 / art. 110348, 16 p.: ill https://doi.org/10.1016/j.palaeo.2021.110348 https://www.scopus.com/sourceid/13985 https://www.scopus.com/record/display.uri?eid=2-s2.0-85102871879&origin=inward&txGid=804cd23aee022a67c68c846f0023c4d5 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=PALAEOGEOGR%20PALAEOCL&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000639124500007
• Clarifying Haljala Stage in EstoniaPaiste, Tõnn; Meidla, Tõnu; Männik, Peep; Nõlvak, Jaak13th International Symposium on the Ordovician System, July 19-22, 20192019 / p. 149–150 http://www.igcp653.org/wp-content/uploads/2019/07/ISOS13Proceedings.pdf
• Climate changes in the pre-Hirnantian late Ordovician based on δ18Ophos studies from EstoniaMännik, Peep; Lehnert, Oliver; Nõlvak, Jaak; Joachimski, Michael M.Palaeogeography, palaeoclimatology, palaeoecology2021 / p. 110347, 16 p. : ill https://doi.org/10.1016/j.palaeo.2021.110347 https://www.scopus.com/sourceid/13985 https://www.scopus.com/record/display.uri?eid=2-s2.0-85102592512&origin=inward&txGid=fbe9050a91c2bc8d7a3f5740c7fadc21 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=PALAEOGEOGR%20PALAEOCL&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000636767300019
• A CONOP9 quantitative stratigraphic model of Baltic Ordovician and Silurian chitinozoan distribution and K-bentonitesAntonovitš, Liina; Nestor, Viiu-Kai; Nõlvak, Jaak; Bauert, Garmen; Hints, Olle; Kiipli, TarmoStratigraphy2015 / p. 91-92
• Correlation of the Middle and Upper Ordovician rocks of Baltoscandia using CONOP9: preliminary resultsGoldman, D.; Klosterman, S.L.; Nõlvak, Jaak; Sheets, H.D.; Miller, G.C.The Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 21
• Darriwilian (Middle Ordovician) conodont biostratigraphy in NW EstoniaHints, Olle; Viira, Viive; Nõlvak, JaakEstonian journal of earth sciences2012 / p. 210-226 : ill https://kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2012/issue_4/earth-2012-4-210-226.pdf
• [delta]13C record of the Upper Ordovician succession of the Borenshult-1 core (Motala, Sweden) and its intracontinental correlationLechnert, O.; Calner, M.; Joachimski, Michael M.; Buggisch, W.; Nõlvak, JaakThe Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 40
• Discovery of rich Katian-Hirnantian jawed polychaete fauna from the Prague Basin, Czech RepublicTonarova, Petra; Vodražkova, Stanislava; Čap, Pavel; Hints, Olle; Nõlvak, Jaak; Kubajko, MichalLille 2021 : Ordovician of the World : programme with abstracts2021 / p. 75-76 https://docplayer.net/219093593-Programme-with-abstracts-2021-virtual-annual-meeting-of-igcp-virtual-annual-meeting-of-igcp-735.html
• Distribution of Ordovician chitinozoansNõlvak, Jaak; Bauert, GarmenEstonian geological sections / Geological Survey of Estonia2006 / p. 9-11
• Distribution of Ordovician chitinozoansNõlvak, JaakMännamaa (F-367) drill core2008 / p. 13-18 : ill
• Early and early Middle Ordovician chitinozoans from the Baldone drill core, central LatviaNõlvak, Jaak; Liang, Yan; Hints, OlleEstonian journal of earth sciences2022 / p. 25-43 : ill https://doi.org/10.3176/earth.2022.03 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-85126727884&origin=inward&txGid=48ed00c9e29f0003df53dc0eac089e87 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000766812400001
• Early diversification of chitinozoans on Baltica : new data from northern Estonia and LatviaLiang, Yan; Nõlvak, Jaak; Hints, Olle13th International Symposium on the Ordovician System : Novosibirsk, Russia (July 19-22, 2019) : contributions2019 / p. 119–120 http://www.igcp653.org/wp-content/uploads/2019/07/ISOS13Proceedings.pdf
• Early diversification of Ordovician chitinozoans on Baltica : New data from the Jägala waterfall section, northern EstoniaNõlvak, Jaak; Liang, Yan; Hints, OllePalaeogeography, palaeoclimatology, palaeoecology2019 / p. 14-24 : ill https://doi.org/10.1016/j.palaeo.2019.04.002 https://www.scopus.com/sourceid/13985 https://www.scopus.com/record/display.uri?eid=2-s2.0-85064321151&origin=inward&txGid=ccd826b53cbf6c25c3e7d2cc6c196dcd https://jcr.clarivate.com/jcr-jp/journal-profile?journal=PALAEOGEOGR%20PALAEOCL&year=2021 https://www.webofscience.com/wos/woscc/full-record/WOS:000468711700002
• Eesti Vabariik : maa. Rahvas. Kultuur : TEA entsüklopeedia eriväljaanneArold, Ivar; Gerndorf, Kostel; Nõlvak, Jaak; Orru, Mall2017 http://www.ester.ee/record=b4648167*est
• Eesti Vabariik : maa. Rahvas. Kultuur : TEA entsüklopeedia eriväljaanneArold, Ivar; Gerndorf, Kostel; Nõlvak, Jaak; Orru, Mall2013 https://www.ester.ee/record=b2932447*est
• Eesti Vabariik : maa. Rahvas. Kultuur : TEA entsüklopeedia eriväljaanneArold, Ivar; Gerndorf, Kostel; Nõlvak, Jaak; Orru, Mall2014 https://www.ester.ee/record=b3059509*est
• Eesti Vabariik 100 : TEA entsüklopeedia eriväljaanneAlatalu, Riin; Engelbrecht, Jüri; Gerndorf, Kostel; Hamburg, Arvi; Lumiste, Rünno; Nõlvak, Jaak; Orru, Mall2017 http://www.ester.ee/record=b4748911*est
• Estonian geological sections. Bulletin 3, Valga (10) drill core. /Eesti tugiläbilõiked. Bülletään 3, Valga (10) puursüdamik/ (50 lk, trükiarv 500) : [2001. a. lõpetatud töö referaat]Põldvere, Anne; Kleesment, Anne-Liis; Nõlvak, Jaak; Männik, Peep; Hints, Olle; Meidla, Tõnu; Kiipli, Tarmo; Kallaste, Toivo; Ainsaar, LehoEesti Geoloogiakeskuse aastaraamat 20012002 / lk. 78-79 https://artiklid.elnet.ee/record=b2287178*est
• Estonian geological sections. Bulletin 5. Ruhnu (500) Drill core / Eesti tugiläbilõiked. Bülletään 5. Ruhnu (500) puursüdamik/ (76 lk, 1 CD; trükiarv 500) : [2003. a. lõpetatud töö referaat]Einasto, Rein; Jõeleht, Argo; Kaljo, Dimitri; Kiipli, Tarmo; Nõlvak, JaakEesti Geoloogiakeskuse aastaraamat 20032004 / lk. 77 https://artiklid.elnet.ee/record=b2283898*est
• Estonian geological sections. Bulletin 6. Mehikoorma (421) Drill core / Eesti tugiläbilõiked. Bülletään 6. Mehikoorma (421) puursüdamik/ (67 lk, 1 CD; trükiarv 500) : [2005. a. lõpetatud töö referaat]Põldvere, Anne; Hints, Linda; Kallaste, Toivo; Kiipli, Tarmo; Kleesment, Anne-Liis; Mark-Kurik, Elga; Lääts, Jaanika; Martma, Tõnu; Männik, Peep; Nõlvak, Jaak; Šogenova, Alla; Viira, ViiveEesti Geoloogiakeskuse aastaraamat 20052006 / lk. 70-71 https://artiklid.elnet.ee/record=b2252828*est
• Estonian geological sections. Bulletin 9. Männamaa (F-367) drill core / Eesti geoloogilised läbilõiked. Bülletään 9. Männamaa (F-367) puursüdamik / (55 lk, 1 CD, trükiarv 500)Põldvere, Anne; Aaloe, Aasa; Ainsaar, Leho; Kallaste, Toivo; Kiipli, Tarmo; Meidla, Tõnu; Mens, Kaisa; Niin, Mati; Nõlvak, Jaak; Orlova, Kiira; Suuroja, Kalle; Šogenova, Alla; Šogenov, Kazbulat; Tinn, Oive; Uutela, Anneli; Viira, ViiveEesti Geoloogiakeskuse aastaraamat 20082009 / lk. 71-72 : ill https://www.ester.ee/record=b1223619*est
• Estonian geological sections. Bulletin 10. Viki drill core / Eesti geoloogilised läbilõiked. Bülletään 10. Viki puursüdamik / (56 lk, 1 CD, trükiarv 500)Põldvere, Aivar; Kalberg, Anna-Liisa; Kallaste, Toivo; Kiipli, Tarmo; Meidla, Tõnu; Männik, Peep; Nestor, Heldur; Nestor, Viiu-Kai; Nõlvak, Jaak; Plado, Jüri; Schleifer, Norbert; Šogenova, Alla; Šogenov, Kazbulat; Tinn, Oive; Voolma, MargusEesti Geoloogiakeskuse aastaraamat 20102011 / lk. 65-66 : ill
• Estonian Soviet Socialist Republic : excursions : 027 hydrogeology of the Baltic. 028 geology and mineral deposits of Lower Palaeozoic of the Eastern Baltic area. GuidebookFreimanis, A.; Hints, Linda; Kaljo, Dimitri; Kink, Hella; Nõlvak, Jaak; Pirrus, Enn-Aavo1984
• Facies and sequences of the Vormsi Stage of the East BalticHarris, M.T.; Hints, Linda; Nõlvak, JaakThe Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 22
• Fossilized reproductive modes reveal a protistan affinity of ChitinozoaLiang, Yan; Hints, Olle; Tang, Peng; Cai, Chenyang; Goldman, Daniel; Nõlvak, Jaak; Tihelka, Erik; Pang, Ke; Bernardo, Joseph; Wang, WenhuiGeology2020 / p. 1200-1204 https://doi.org/10.1130/G47865.1 https://www.scopus.com/sourceid/26959 https://www.scopus.com/record/display.uri?eid=2-s2.0-85089281113&origin=inward&txGid=6ef0a3ce62ad187d0f663b643eec7a9b https://jcr.clarivate.com/jcr-jp/journal-profile?journal=GEOLOGY&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000594355000015
• Geoloogilised retked Tallinnas ja selle lähiümbruses = Geological tours in Tallinn and its environsNõlvak, JaakTallinna geoloogia = Geology of Tallinn2010 / lk. 184-201 : ill https://www.ester.ee/record=b2634906*est
• Glacioeustatic karst development in the Late Ordovician of BalticaLehnert, Oliver; Männik, Peep; Nõlvak, Jaak; Kröger, Björn; Joachimski, Michael M.; Calner, Mikael; Bauert, HeikkiIGCP 591 : The Early to Middle Paleozoic Revolution : Closing Meeting, Ghent University, Belgium, 6-9 July 2016 : abstracts2016 / p. 52
• High-resolution stratigraphic correlation and biodiversity dynamics of Middle and Late Ordovician marine fossils from Baltoscandia and PolandGoldman, Daniel; Sheets, H. David; Bergström, Stig M.; Nõlvak, Jaak; Podhalanska, TeresaGeoTirol 2016 : Annual Meeting DGGV, 25-28 September 2016, Innsbruck, Austria : abstract volume2016 / p. 87 https://www.uibk.ac.at/geologie/geotirol2016-pangeo/images/abstractvolume.pdf
• Hirnantian (latest Ordovician) bio- and chemostatigraphy of the Stirnas-18 core, western LatviaHints, Linda; Hints, Olle; Kaljo, Dimitri; Kiipli, Tarmo; Männik, Peep; Nõlvak, Jaak; Pärnaste, HeljeEstonian journal of earth sciences2010 / p. 1-24 : ill https://artiklid.elnet.ee/record=b2739538*est
• Hotelliehitaja memuaareNõlvak, JaakGeoloogia instituudi kuuskümmend viis aastat : loomine ja muutumised, inimesed ja teadus, meenutused ja suundumused2012 / lk. 246-249 : portr
• Hulterstad brachiopods and associated faunas in the Vormsi Stage (Upper Ordovician, Katian) of the Lelle core, Central EstoniaHints, Linda; Hints, Olle; Nemliher, Reet; Nõlvak, JaakEstonian journal of earth sciences2007 / 3, p. 131-142 : ill
• Integrated Upper Ordovician–lower Silurian biostratigraphy of the Grötlingbo-1 core section, SwedenMännik, Peep; Loydell, David Kendrick; Nestor, Viiu; Nõlvak, JaakGFF2015 / p. 226 - 244 https://doi.org/10.1080/11035897.2015.1042032 https://www.scopus.com/sourceid/25844 https://www.scopus.com/record/display.uri?eid=2-s2.0-84943602181&origin=inward&txGid=f34e5548eb4197a93e2e4ef16cb18d06 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=GFF&year=2015 https://www.webofscience.com/wos/woscc/full-record/WOS:000362516800008
• Kivistised kui varamuNõlvak, JaakMaa ressursid : [7. geoloogia sügiskooli artiklid ja ettekanded]2011 / lk. 32-42
• Late Ordovician karst valleys, caves, and breccias of Baltoscandia - a mirror of glacioeustatic sea level changes on a subtropical carbonate shelfLehnert, Oliver; Männik, Peep; Nõlvak, Jaak; Kröger, Björn; Joachimski, Michael M.; Calner, Mikael; Bauert, Heikki; Schmid, RebekkaFossils : Key to evolution, stratigraphy and palaeoenvironments : 87th Annual Conference of the Paläontologische Gesellschaf e. V. : Dresden, September 11-15, 2016 : programme, abstracts, field trip guides2016 / p. 91-92 http://www.palges.de/fileadmin/pdf/Tagung_2016/PalGesDresden_programme_abstracts.pdf
• Latest Ordovician age of the Spinachitina fragilis Chitinozoan Biozone in BaltoscandiaNõlvak, Jaak; Liang, Yan; Hints, OlleEstonian journal of earth sciences2023 / p. 82-85 : ill https://doi.org/10.3176/earth.2023.51 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-85164595140&origin=inward&txGid=d237bbf8ecf83d0d4985626bb14438ec https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:001015399200006
• Latest Ordovician jawed polychaetes, chitinozoans and depositional environments of the Levín section, Prague Basin, Czech RepublicTonarová, Petra; Vodrážková, Stanislava; Hints, Olle; Nõlvak, Jaak; Kubajko, Michal; Čáp, PavelGeobios2023 / p. 179-198 : ill https://doi.org/10.1016/j.geobios.2023.01.008 https://www.scopus.com/sourceid/13909 https://www.scopus.com/record/display.uri?eid=2-s2.0-85161043332&origin=inward&txGid=6b75d9a70039ab702a64dfb384752b72 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=GEOBIOS-LYON&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:001146014000001
• Latest Ordovician to early Silurian integrated bio-and chemostratigraphy in northern Lithuania, central East BalticHints, Olle; Ainsaar, Leho; Lepland, Aivo; Männik, Peep; Meidla, Tõnu; Nõlvak, Jaak; Radzevičius, SigitasLille 2021 : Ordovician of the World : programme with abstracts2021 / p. 40-41 https://docplayer.net/219093593-Programme-with-abstracts-2021-virtual-annual-meeting-of-igcp-virtual-annual-meeting-of-igcp-735.html
• Latest Sandbian brachiopods and chitinozoan biostratigraphy in North EstoniaHints, Linda; Nõlvak, JaakEstonian journal of earth sciences2023 / p. 42-45 : ill https://doi.org/10.3176/earth.2023.50 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-85164575970&origin=inward&txGid=103809ae92fe4ee74fd25a815a1b3868 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:001015198400011
• Loodusmälestiste väärtuste hindamisest Pakri poolsaare ja saarte näitelKink, Hella; Erg, Katrin; Miidel, Avo; Nõlvak, Jaak; Raukas, AntoKeskkonnatehnika2002 / lk. 42-44 https://artiklid.elnet.ee/record=b1009019*est
• Lower and Middle Ordovician bio- and chemostratigraphy of the Aizpute-41 drill core, LatviaLieffroy, Thibaud; Ainsaar, Leho; Männik, Peep; Meidla, Tõnu; Nõlvak, Jaak; Hints, OlleXI Baltic Stratigraphical Conference : abstracts and field guide2024 / p. 22 https://www.ester.ee/record=b5696260*est https://files.geocollections.info/71c8154a-ede7-4a3a-9989-88de5c5848f6.pdf
• Lower and Middle Ordovician chitinozoans from Honghuayuan, South China: Biodiversity patterns and response to environmental changesLiang, Yan; Hints, Olle; Luan, Xiaocong; Tang, Peng; Nõlvak, Jaak; Zhan, RenbinPalaeogeography, palaeoclimatology, palaeoecology2018 / p. 95-105 https://doi.org/10.1016/j.palaeo.2018.04.002 https://www.scopus.com/sourceid/13985 https://www.scopus.com/record/display.uri?eid=2-s2.0-85045948208&origin=inward&txGid=bdd6d25171a38acc3b95f030d6152b0f https://jcr.clarivate.com/jcr-jp/journal-profile?journal=PALAEOGEOGR%20PALAEOCL&year=2021 https://www.webofscience.com/wos/woscc/full-record/WOS:000432501700007
• Maailmajaod. Geograafia. Ajalugu. Kultuur : TEA entsüklopeedia eriväljaanneAmon, Maris; Nõlvak, Jaak2017 http://www.ester.ee/record=b4632072*est
• Melanosclerites from the Late Ordovician to earliest Silurian of Estonia and their palaeogeographical implicationsDu, Minghao; Nõlvak, Jaak; Tan, Jingqiang; Gao, Shijia; Wang, WenhuiPalynology2022 / art. 2012538, 16 p. : ill https://doi.org/10.1080/01916122.2021.2012538 https://www.scopus.com/sourceid/14596 https://www.scopus.com/record/display.uri?eid=2-s2.0-85122870673&origin=inward&txGid=c71fcbaa48a80a52ad1969bfae14e0d8 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=PALYNOLOGY&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000743880900001
• Microfossil dynamics and biostratigraphy in the Väo Formation (Darriwilian) of NW EstoniaKilling, Mairy; Hints, Olle; Nõlvak, Jaak; Vecoli, M.; Viira, ViiveThe Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 35
• Middle to Late Ordovician graptolite and chitinozoan biostratigraphy of the Kandava-25 drill core in western LatviaGoldman, Daniel; Nõlvak, Jaak; Maletz, JörgGFF2015 / p. 197 - 211 https://doi.org/10.1080/11035897.2015.1021375 https://www.scopus.com/sourceid/25844 https://www.scopus.com/record/display.uri?eid=2-s2.0-84943657463&origin=inward&txGid=87044c1810d0cc5a12090ba5ba077323 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=GFF&year=2015 https://www.webofscience.com/wos/woscc/full-record/WOS:000362516800006
• Mikropaleontoloogia ja biostratigraafia rollist ning ühest tähendusrikkast leiust EestisMeidla, Tõnu; Nõlvak, Jaak; Tinn, OiveTeadusmõte Eestis (VI). Elu- ja maateadused : [artiklikogumik]2011 / lk. 97-115 : ill
• More about the Ordovician-Silurian transition beds at Mirny Creek, Omulev Mountains, NE Russia: carbon isotopes and conodontsKaljo, Dimitri; Männik, Peep; Martma, Tõnu; Nõlvak, JaakEstonian journal of earth sciences2012 / p. 277-294 : ill https://artiklid.elnet.ee/record=b2552072*est
• Morphological variation of chitinozoans : a case study from the Upper Ordovician Viola Springs Formation, Arbuckle Mountains, Oklahoma, USA [Online resource]Liang, Yan; Nõlvak, Jaak; Goldman, Daniel; Hints, OlleTrekking Across the GOBE : From the Cambrian through the Katian, June 3-7, 2018 : program & abstracts2018 / p. 45 https://igcp653athens2018.files.wordpress.com/2018/05/conference-programabstracts-sm1.pdf
• Morphological variation suggests that chitinozoans may be fossils of individual microorganisms rather than metazoan eggsLiang, Yan; Bernardo, Joseph; Goldman, Daniel; Nõlvak, Jaak; Tang, Peng; Wang, Wenhui; Hints, OlleProceedings of the Royal Society B: Biological Sciences2019 / art. 20191270, 8 p. : ill https://doi.org/10.1098/rspb.2019.1270 https://www.scopus.com/sourceid/130030 https://www.scopus.com/record/display.uri?eid=2-s2.0-85070821900&origin=inward&txGid=1f920887360d058c5e6460495e54b6ca https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20ROY%20SOC%20B-BIOL%20SCI&year=2021 https://www.webofscience.com/wos/woscc/full-record/WOS:000482187500017
• A multiproxy study of the Puhmu core section (Estonia, Upper Ordovician) : consequences for stratigraphy and environmental interpretationKaljo, Dimitri; Hints, Linda; Martma, Tõnu; Nõlvak, JaakEstonian journal of earth sciences2017 / p. 77-92 : ill https://doi.org/10.3176/earth.2017.08 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-85019924675&origin=inward&txGid=fd6fc394a3a5c9da7ced96a50f24395a https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2017 https://www.webofscience.com/wos/woscc/full-record/WOS:000403858800002
• New biostratigraphically important chitinozoans from the Kukruse Regional Stage, Upper Ordovician of BaltoscandiaNõlvak, Jaak; Bauert, GarmenEstonian journal of earth sciences2015 / p. 218-224 : ill https://artiklid.elnet.ee/record=b2739527*est https://doi.org/10.3176/earth.2015.28 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-84939184077&origin=inward&txGid=598d92d456a060c3901e84c22ada3e0f https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2015 https://www.webofscience.com/wos/woscc/full-record/WOS:000360713500003
• New data on Ordovician stable isotope record and conodont biostratigraphy from the Viki reference drill core, Saaremaa Island, western EstoniaHints, Olle; Martma, Tõnu; Männik, Peep; Nõlvak, Jaak; Põldvere, Anne; Shen, Yanan; Viira, ViiveGFF2014 / p. 100-104 : ill https://doi.org/10.1080/11035897.2013.873989 https://www.scopus.com/sourceid/25844 https://www.scopus.com/record/display.uri?eid=2-s2.0-84901230012&origin=inward&txGid=8d2be4cc7054caaf2933bb80c8c9145e https://jcr.clarivate.com/jcr-jp/journal-profile?journal=GFF&year=2014 https://www.webofscience.com/wos/woscc/full-record/WOS:000335945500021
• On future directions of Ordovician chitinozoan researchLiang, Yan; Hints, Olle; Nõlvak, Jaak; Tang, PengEstonian journal of earth sciences2023 / p. 58-61 : ill https://doi.org/10.3176/earth.2023.34 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-85164620459&origin=inward&txGid=ebffe8bc0e26201794ec7426af2e710e https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:001015198400015
• Ordovician chitinozoans of the Miaopo Formation at Zhenjin, Upper Yangtze Platform, South ChinaLiang, Yan; Nõlvak, Jaak; Hints, OllePalynology2024 / art. 2271086, 15 p. : ill https://doi.org/10.1080/01916122.2023.2271086 https://www.scopus.com/sourceid/14596 https://www.scopus.com/record/display.uri?eid=2-s2.0-85177668686&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=ALL%28%22Ordovician+chitinozoans+of+the+Miaopo+Formation+at+Zhenjin%2C+Upper+Yangtze+Platform%2C+South+China%22%29&sessionSearchId=2904932eb492bc478273bae0cf0a61de&relpos=1 https://www.scopus.com/sourceid/14596 https://www.webofscience.com/wos/woscc/full-record/WOS:001107533800001
• Ordovician timescale in Estonia : recent developmentsNõlvak, Jaak; Hints, Olle; Männik, PeepProceedings of the Estonian Academy of Sciences. Geology2006 / 2, p. 95-108
• Ordoviikkikausi Virossa ja Edelä-SuomessaNestor, Heldur; Soesoo, Alvar; Linna, Ari; Hints, Olle; Nõlvak, Jaak2006 https://www.ester.ee/record=b2145299*est
• Ordoviitsium Eestis ja Lõuna-SoomesNestor, Heldur; Soesoo, Alvar; Linna, Ari; Hints, Olle; Nõlvak, Jaak2006 https://www.ester.ee/record=b2145298*est
• Paired carbon isotope chemostratigraphy across the Ordovician–Silurian boundary in central East Baltic: Regional and global signaturesHints, Olle; Ainsaar, Leho; Lepland, Aivo; Liiv, Merlin; Männik, Peep; Meidla, Tõnu; Nõlvak, Jaak; Radzevičius, SigitasPalaeogeography, palaeoclimatology, palaeoecology2023 / art. 111640, 17 p. : ill https://doi.org/10.1016/j.palaeo.2023.111640 https://www.scopus.com/sourceid/13985 https://www.scopus.com/record/display.uri?eid=2-s2.0-85162226638&origin=inward&txGid=915186721a37e85b159e687a8dd011cc https://jcr.clarivate.com/jcr-jp/journal-profile?journal=PALAEOGEOGR%20PALAEOCL&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:001056018200001
• Palaeoecology of floian and dapingian (Ordovician) chitinozoans in South ChinaLiang, Yan; Hints, Olle; Luan, Xiaocong; Servais, Thomas; Nõlvak, Jaak; Tang, Peng; Wu, RongchangThe Fossil Week : Abstract Book : 5th International Palaeontological Congress: IPC5 2018 : Paris, 9th-13th July, 20182018 / p. 850 https://ipc5.sciencesconf.org/data/IPC5_Abstract_Book.pdf
• Palaeoenvironmental and biostratigraphical implications of selected Floian and Dapingian (Ordovician) chitinozoans of the South China PalaeoplateLiang, Yan; Hints, Olle; Servais, Thomas; Luan, Xiaocong; Nõlvak, Jaak; Tang, Peng; Wu, Rong-ChangLethaia2018 / 220-231 p. : ill https://doi.org/10.1111/let.12308 https://www.scopus.com/sourceid/13956 https://www.scopus.com/record/display.uri?eid=2-s2.0-85054062175&origin=inward&txGid=3a7e6a10e45653cb509a3dacc32dee20 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=LETHAIA&year=2021 https://www.webofscience.com/wos/woscc/full-record/WOS:000461190100005
• PaljandidNõlvak, Jaak; Hints, OlleHarjumaa : Paldiski, Pakri poolsaar ja saared2000 / lk. 15-16 https://www.ester.ee/record=b1628563*est
• Possible metazoan egg fossils from the Darriwilian (Middle Ordovician) of BaltoscandiaHints, Olle; Nõlvak, Jaak; Liang, YanEstonian journal of earth sciences2021 / p. 240-252 : ill https://doi.org/10.3176/earth.2021.16 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-85121114552&origin=inward&txGid=b312c6e68c745aae407face5c91fe57d
• Re-explore the biological affinity of chitinozoans: Evidence from morphological variation and exceptional specimensLiang, Yan; Hints, Olle; Bernardo, Joseph; Goldman, Daniel; Nõlvak, Jaak; Tang, Peng; Wang, WenhuiZooming in on the GOBE : 2020 virtual annual meeting of IGCP 653 : International Geoscience Programme Project 653 : The onset of the Great Ordovician Biodiversification Event, September 7-10, 2020 : Abstracts2020 / p. 33 https://www.researchgate.net/publication/344172580_IGCP_653_2020_Virtual_Annual_Meeting_Zooming_in_on_the_GOBE_Abstracts_Programme
• Reinu quarryHints, Olle; Ainsaar, Leho; Männik, Peep; Meidla, Tõnu; Nõlvak, Jaak; Toom, UrsulaXI Baltic Stratigraphical Conference : abstracts and field guide2025 / p. 145-150 : ill https://www.ester.ee/record=b5696260*est https://files.geocollections.info/1f99d548-322e-4f77-85a7-086886d28cca.pdf
• Revision of Ordovician chitinozoan Lagenochitina esthonica sensu lato : morphometrics, biostratigraphy and paleobiogeographyLiang, Yan; Nõlvak, Jaak; Xu, Honghe; Chen, Yansen; Hints, OlleJournal of paleontology2022 / p. 46-60 https://doi.org/10.1017/jpa.2021.79 https://www.scopus.com/sourceid/13939 https://www.scopus.com/record/display.uri?eid=2-s2.0-85113337964&origin=inward&txGid=2e65b20d147df787d88c2e2b322c84eb https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20PALEONTOL&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000750980100004
• TEA entsüklopeediaEerme, Kalju; Loide, Rein-Karl; Nõlvak, Jaak; Alver, Jaan; Purju, Alari; Kask, Jüri; Kõiv, Teet-Andrus; Mespak, Vello; Metsaveer, Jaan; Mõisnik, Kuulo; Raado, Lembi-Merike; Vain, Jüri2014
• TEA entsüklopeediaTulviste, Peeter; Engelbrecht, Jüri; Eerme, Kalju; Loide, Rein-Karl; Nõlvak, Jaak; Christjanson, Peep; Kann, Jüri; Viikna, Anti; Alver, Jaan; Ennuste, Ülo; Gerndorf, Kostel; Abel, Mart; Vene, Varmo; Albri, Rein; Kask, Jüri; Aro, Rein; Kõiv, Teet-Andrus; Mespak, Vello; Metsaveer, Jaan; Mõisnik, Kuulo; Raado, Lembi-Merike; Reinsalu, Enno; Vares, Villu; Kaasik, Imbi2008 https://www.ester.ee/record=b2408734*est
• TEA entsüklopeediaTulviste, Peeter; Engelbrecht, Jüri; Eerme, Kalju; Loide, Rein-Karl; Nõlvak, Jaak; Christjanson, Peep; Kann, Jüri; Viikna, Anti; Alver, Jaan; Gerndorf, Kostel; Abel, Mart; Vene, Varmo; Aro, Rein; Mespak, Vello; Metsaveer, Jaan; Raado, Lembi-Merike; Reinsalu, Enno; Sinivee, Veljo; Vares, Villu; Kaasik, Imbi2009 https://www.ester.ee/record=b2465036*est
• TEA entsüklopeediaTulviste, Peeter; Engelbrecht, Jüri; Eerme, Kalju; Loide, Rein-Karl; Nõlvak, Jaak; Christjanson, Peep; Kann, Jüri; Viikna, Anti; Alver, Jaan; Gerndorf, Kostel; Purju, Alari; Abel, Mart; Vene, Varmo; Aarna, Olav; Kõiv, Teet-Andrus; Mespak, Vello; Metsaveer, Jaan; Mõisnik, Kuulo; Vares, Villu; Nuuma, Poigo2009 https://www.ester.ee/record=b2503851*est
• TEA entsüklopeediaTulviste, Peeter; Engelbrecht, Jüri; Eerme, Kalju; Loide, Rein-Karl; Nõlvak, Jaak; Christjanson, Peep; Gerndorf, Kostel; Purju, Alari; Mespak, Vello; Metsaveer, Jaan; Mõisnik, Kuulo; Vares, Villu; Raado, Lembi-Merike; Reinsalu, Enno; Sinivee, Veljo; Kaasik, Imbi; Nuuma, Poigo2009 https://www.ester.ee/record=b2542726*est
• TEA entsüklopeedia2010 https://www.ester.ee/record=b2607773*est
• TEA entsüklopeedia2011 https://www.ester.ee/record=b2666688*est
• TEA entsüklopeedia2011 https://www.ester.ee/record=b2712813*est
• TEA entsüklopeedia2012 https://www.ester.ee/record=b2772002*est
• TEA entsüklopeedia2012 https://www.ester.ee/record=b2869027*est
• TEA entsüklopeedia2013 https://www.ester.ee/record=b2925120*est
• The geology of the Malingen structure : a probable doublet to the Lockne marine-target impact crater, central SwedenOrmö, J.; Sturkell, Erik; Nõlvak, JaakMeteoritics & planetary science2014 / p. 313-327 : ill https://doi.org/10.1111/maps.12251 https://www.scopus.com/sourceid/27711 https://www.scopus.com/record/display.uri?eid=2-s2.0-84897027050&origin=inward&txGid=b81b0d99269b0a04a9915e3db2ffed4d https://jcr.clarivate.com/jcr-jp/journal-profile?journal=METEORIT%20PLANET%20SCI&year=2014 https://www.webofscience.com/wos/woscc/full-record/WOS:000333251800002
• The Great Ordovician Biodiversification Event: Linked to phytoplankton evolution or to asteroid impacts?Servais, T.; Hints, Olle; Kröger, Björn; Nõlvak, Jaak; Vecoli, M.; Wallin, A.The Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 63
• The Guttenberg carbon isotope excursion (GICE; Ordovician) in EstoniaBauert, Heikki; Hints, Olle; Bauert, Garmen; Nõlvak, Jaak; Ainsaar, Leho; Martma, Tõnu10th Baltic Stratigraphic Conference : Checiny, 12-14 September 2017 : abstracts and field guide2017 / p. 13-14 : ill http://geo.uw.edu.pl/tl_files/publikacje/10th_Baltic_Stratigraphic_Conference_Abstracts_and_Field_Guide.pdf
• The late Sandbian/Early Katian carbonate succession in the eastern St.Petersburgregion: the stratigraphic record in the Krapivno The late Sandbian/Early Katian carbonate succession in the eastern St. Petersburg region: the stratigraphic record in the Krapivno 21 drill core 21 drill coreHints, Linda; Lehnert, Oliver; Nõlvak, Jaak; Männik, Peep; Pärnaste, Helje; Joachimski, Michael M.XI Baltic Stratigraphical Conference : abstracts and field guide2024 / p. 13 https://www.ester.ee/record=b5696260*est https://files.geocollections.info/16c906be-0636-4d30-95fe-065c76cc887a.pdf
• The Lockne-Målingen doublet impact structure : a marine impact by a binary asteroidOrmö, J.; Sturkell, E.; Alwmark, C.; Nõlvak, Jaak; Melero-Asensio, I.; Lepinette, A.; Frisk, A.; Holm, S.; Wikström, T.31st Nordic Geological Winter Meeting : Lund, Sweden, January 8-10 20142014 / p. 165
• The lower boundary of the Haljala Regional Stage (Sandbian, Upper Ordovician) in EstoniaPaiste, Tõnn; Männik, Peep; Nõlvak, Jaak; Meidla, TõnuEstonian journal of earth sciences2020 / p. 76–90 : ill https://doi.org/10.3176/earth.2020.05 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-85085035292&origin=inward&txGid=6fb77f736e16c8d0b175b38cb42b58bc https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000540165800002
• The Pirgu Regional Stage (Upper Ordovician) in the East Baltic : lithostratigraphy, biozonation, and correlationHints, Linda; Oraspõld, Asta; Nõlvak, JaakProceedings of the Estonian Academy of Sciences. Geology2005 / 4, p. 225-259 : ill
• The succession of Hirnantian events based on data from Baltica : brachiopods, chitinozoans, conodonts, and carbon isotopesKaljo, Dimitri; Hints, Linda; Männik, Peep; Nõlvak, JaakEstonian journal of earth sciences2008 / 4, p. 197-218 : ill https://artiklid.elnet.ee/record=b1076635*est
• Unikaalsed fossiilid - muistse elu jäljed Tallinna aluspõhjas = Unique fossils - traces of ancient life in the bedrock of TallinnNõlvak, JaakTallinna geoloogia = Geology of Tallinn2010 / lk. 82-89 : ill https://www.ester.ee/record=b2634906*est
• Upper Katian (Ordovician) bentonites in the East Baltic, Scandinavia and Scotland Geochemical correlation and volcanic source interpretationKiipli, Tarmo; Dahlqvist, Peter; Kallaste, Toivo; Kiipli, Enli; Nõlvak, JaakGeological Magazine2015 / p. 589 - 602 https://doi.org/10.1017/S001675681400051X https://www.scopus.com/sourceid/26476 https://www.scopus.com/record/display.uri?eid=2-s2.0-84929186042&origin=inward&txGid=304ba935ad1c9b21fba0a99d4acba051 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=GEOL%20MAG&year=2015 https://www.scopus.com/record/display.uri?eid=2-s2.0-84929186042&origin=inward&txGid=304ba935ad1c9b21fba0a99d4acba051
• Upper Middle to lower Upper Ordovician chitinozoans and conodonts from the Bliudziai-150 core, southern LithuaniaStouge, Svend; Bauert, Garmen; Bauert, Heikki; Nõlvak, Jaak; Rasmussen, Jan A.Canadian journal of earth sciences2016 / p. 781-787 : ill https://doi.org/10.1139/cjes-2015-0205 https://www.scopus.com/sourceid/22031 https://www.scopus.com/record/display.uri?eid=2-s2.0-84979943878&origin=inward&txGid=77b940528957bf57d7ad7933132fc865 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=CAN%20J%20EARTH%20SCI&year=2016 https://www.webofscience.com/wos/woscc/full-record/WOS:000380910300005
• Upper Sandbian-lower Katian bio- and chemostratigraphy in the Pajevonys-13 core section, LithuaniaHints, Linda; Paškevičius, Juozas; Martma, Tõnu; Männik, Peep; Nõlvak, JaakEstonian journal of earth sciences2016 / p. 85-97 : ill https://doi.org/10.3176/earth.2016.08 https://artiklid.elnet.ee/record=b2778909*est https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-84970004293&origin=inward&txGid=c549a4c3b89d8a077100af6e93fc02f4 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2016 https://www.webofscience.com/wos/woscc/full-record/WOS:000376670200003