Age of Estonian kukersite oil shale - Middle or Late Ordovician?Hints, Olle; Nõlvak, Jaak; Viira, ViiveOil shale2007 / 4, p. 527-533 : ill

A bio- and chemostratigraphic search for the Mid-Ludfordian Carbon Isotope Excursion interval in the Ludlow of the Ohesaare core, EstoniaKaljo, Dimitri; Martma, Tõnu; Märss, Tiiu; Nestor, Viiu-Kai; Viira, ViiveEstonian journal of earth sciences2022 / p. 44-60 : ill https://doi.org/10.3176/earth.2022.04 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

A bio-chemostratigraphical test of the synchroneity of biozones in the upper Silurian of Estonia and Latvia with some implications for practical stratigraphyKaljo, Dimitri; Einasto, Rein; Martma, Tõnu; Märss, Tiiu; Nestor, Viiu-Kai; Viira, ViiveEstonian journal of earth sciences2015 / p. 267-283 : ill https://artiklid.elnet.ee/record=b2750825*est

Conodont biostratigraphy in the Middle-Upper Ordovician boundary beds of EstoniaViira, ViiveEstonian journal of Earth sciences2008 / 1, p. 23-38 : ill

Conodonts in Silurian hypersaline environments : specialized and unexpectedly diverseJarochowska, Emilia; Viira, Viive; Einasto, Rein; Nawrot, Rafal; Bremer, Oskar; Männik, Peep; Munnecke, AxelGeology2017 / p. 3-6 : ill https://doi.org/10.1130/G38492.1

Conodonts of the Kiviõli Member, Viivikonna Formation (Upper Ordovician) in the Kohtla section, EstoniaViira, Viive; Aldrige, Richard J.; Curtis, StephanieProceedings of the Estonian Academy of Sciences. Geology2006 / 3, p. 213-240 : ill

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

Distribution of Ordovician conodontsViira, Viive; Löfgren, Anita; Sjöstrand, LisaEstonian geological sections / Geological Survey of Estonia2006 / p. 11-13

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

Excursion C: Silurian of Saaremaa Island : [20-22 May 2008]Männik, Peep; Hints, Olle; Kaljo, Dimitri; Nestor, Heldur; Märss, Tiiu; Viira, ViiveThe Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 111-137 : ill

General geological setting and stratigraphyPõldvere, Anne; Suuroja, Kalle; Mens, Kaisa; Viira, ViiveMännamaa (F-367) drill core2008 / p. 6-13 : ill

Lower and Middle Ordovician conodonts from south-eastern Estonia and adjacent Pskov region of RussiaViira, Viive; Löfgren, AnitaThe Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 73

Lower and Middle Ordovician conodonts from the subsurface of SE Estonia and adjacent RussiaViira, ViiveEstonian journal of earth sciences2011 / 1, p. 1-21 : ill https://artiklid.elnet.ee/record=b2284309*est

Lower Ordovitsian Leetse Formation in the North Estonian Klint areaViira, Viive; Mens, Kaisa; Nemliher, JüriProceedings of the Estonian Academy of Sciences. Geology2006 / 2, p. 156-174 : ill

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

On the lower boundary of the Floian Stage in EstoniaPärnaste, Helje; Viira, ViiveEstonian journal of earth sciences2012 / p. 205-209 https://artiklid.elnet.ee/record=b2551998*est

Ordovician conodont diversity in the northern BalticMännik, Peep; Viira, ViiveEstonian journal of earth sciences2012 / p. 1-14 : ill https://artiklid.elnet.ee/record=b2480015*est

Конодонты ордовика Прибалтики : /специальность № 128 - палеонтология и стратиграфия : диссертация на соискание ученой степени кандидата геолого-минералогических наукViira, Viive1970 https://www.ester.ee/record=b4416494*est

Конодонты ордовика Прибалтики : автореферат ... кандидата геолого-минералогических наук (128)Viira, Viive1970 https://www.ester.ee/record=b1397871*est