• Changes in trace element contents in ashes of oil shale fueled PF and CFB boilers during operationReinik, Janek; Irha, Natalya; Steinnes, Eiliv; Urb, Gary; Jefimova, Jekaterina; Piirisalu, Eero; Loosaar, JüriFuel Processing Technology2013 / p. 174 - 181 https://doi.org/10.1016/j.fuproc.2013.06.001 https://www.scopus.com/sourceid/16315 https://www.scopus.com/record/display.uri?eid=2-s2.0-84879472744&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.1016%2Fj.fuproc.2013.06.001%29&sessionSearchId=603e590d3e42fd7816bb5e603603c2fd&relpos=0 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=FUEL%20PROCESS%20TECHNOL&year=2013 https://www.webofscience.com/wos/woscc/full-record/WOS:000324154600021
• Granulation of oil shale ashes and leachability of granulated productsKaljuvee, Tiit; Loide, Valli; Einard, Marve; Jefimova, Jekaterina; Kuusik, Rein, keemikInternational Symposium "Oil shale 100 years" : Estonia, Sept. 20-23, 2016 : [abstracts]2016 / p. 51
• Granulation of oil shale ashes for neutralizing of acidic soilsKaljuvee, Tiit; Jefimova, Jekaterina; Loide, Valli; Uibu, Mai; Einard, Marve; Kuusik, Rein, keemikInternational IX Oil Shale Conference 2017 "Oil Shale Industry in Circular Economy" : 15th-16th November 2017, [Jõhvi], Ida-Viru County, Estonia : summary2017 / p. 16-17 http://www.ester.ee/record=b4751282*est
• Influence of the post-granulation treatment on the thermal behaviour and leachability characteristics of Estonian oil shale ashesKaljuvee, Tiit; Jefimova, Jekaterina; Loide, Valli; Uibu, Mai; Einard, MarveJournal of thermal analysis and calorimetry2018 / p. 47–57 : ill https://doi.org/10.1007/s10973-017-6875-2 https://www.scopus.com/sourceid/26983 https://www.scopus.com/record/display.uri?eid=2-s2.0-85037715784&origin=inward&txGid=da4a5beb45970e822598437fdf98a9eb https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20THERM%20ANAL%20CALORIM&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000426795200006
• Influence of the post-granulation treatment on the thermal behaviour of Estonian oil shale ashesKaljuvee, Tiit; Jefimova, Jekaterina; Loide, Valli; Uibu, Mai; Einard, Marve; Kuusik, Rein, keemikJTACC+V4 : 1st Journal of Thermal Analysis and Calorimetry Conference and 6th V4 (Joint Czech-Hungarian-Polish-Slovakian) Themoanalytical Conference: Budapest Hungary, June 6-9, 2017 : Book of Abstracts2017 / p. 105 https://static.akcongress.com/downloads/jtacc/jtacc2017-book-of-abstracts.pdf
• Influence of waste products from electricity and cement industries on the thermal behaviour of Estonian clay from Kunda depositKaljuvee, Tiit; Štubna, Igor; Hulan, Tomaš; Csaki, Štefan; Uibu, Mai; Jefimova, Jekaterina12th European Symposium on Thermal Analysis and Calorimetry ESTAC 12 : 27-30 August 2018, Brasov, Romania : book of abstracts2018 / OP1.19, p. 75 http://estac12.org/download.php?f=../download/BoA%20ESTAC12.pdf
• Influence of waste products from electricity and cement industries on the thermal behaviour of Estonian clay from Kunda depositKaljuvee, Tiit; Štubna, Igor; Hulan, Tomaš; Csaki, Štefan; Uibu, Mai; Jefimova, JekaterinaJournal of thermal analysis and calorimetry2019 / p. 2635–2650 : ill https://doi.org/10.1007/s10973-019-08319-0 https://www.scopus.com/sourceid/26983 https://www.scopus.com/record/display.uri?eid=2-s2.0-85065700397&origin=inward&txGid=bf3493b2b87afa507f75d5b3a221b85a https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20THERM%20ANAL%20CALORIM&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000499703500025
• Leaching behaviour of Estonian oil shale ash-based construction mortarsIrha, Natalja; Uibu, Mai; Jefimova, Jekaterina; Raado, Lembi-Merike; Hain, Tiina; Kuusik, Rein, keemikOil shale2014 / p. 394-411 : ill https://artiklid.elnet.ee/record=b2704135*est https://doi.org/10.3176/oil.2014.4.07 https://www.scopus.com/sourceid/17080 https://www.scopus.com/record/display.uri?eid=2-s2.0-84916232068&origin=inward&txGid=005b8e8cd531a25d2c41b873ad6fb0e7 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=OIL%20SHALE&year=2014 https://www.webofscience.com/wos/woscc/full-record/WOS:000346884800007
• Leaching of PAHs from agricultural soils treated with oil shale combustion ash : an experimental studyJefimova, Jekaterina; Adamson, Jasper; Reinik, Janek; Irha, NataljaEnvironmental science and pollution research2016 / p. 20862-20870 : ill https://doi.org/10.1007/s11356-016-7300-2 https://www.scopus.com/sourceid/23918 https://www.scopus.com/record/display.uri?eid=2-s2.0-84982867380&origin=inward&txGid=57c6d8b0d98e833e33bc21917d2d7d8e https://www.webofscience.com/wos/woscc/full-record/WOS:000387599100073
• Leaching of polycyclic aromatic hydrocarbons (PAHs) and heavy metals from the oil shale processing wastes and from waste-based productsJefimova, Jekaterina2015 https://www.ester.ee/record=b4474360*est
• PAHs in leachates from thermal power plant wastes and ash-based construction materialsIrha, Natalja; Reinik, Janek; Jefimova, Jekaterina; Koroljova, Arina; Raado, Lembi-Merike; Hain, Tiina; Uibu, Mai; Kuusik, Rein, keemikEnvironmental science and pollution research2015 / p. 11877-11889 : ill https://doi.org/10.1007/s11356-015-4459-x https://www.scopus.com/sourceid/23918 https://www.scopus.com/record/display.uri?eid=2-s2.0-84937883268&origin=inward&txGid=6e9420c962b951b4ac888ed15aa6c8f3 https://www.webofscience.com/wos/woscc/full-record/WOS:000358330800061
• Release of trace elements from oil shale fly ash of PF and CFB boilersReinik, Janek; Irha, Natalja; Jefimova, Jekaterina; Steinnes, EilivInternational Symposium "Oil shale 100 years" : Estonia, Sept. 20-23, 2016 : [abstracts]2016 / p. 25
• Study of thermooxidation of oil shale samples and basics of processes for utilization of oil shale ashesKaljuvee, Tiit; Uibu, Mai; Yörük, Can Rüstü; Einard, Marve; Trikkel, Andres; Kuusik, Rein, keemik; Trass, Olev; Štubna, Igor; Hulan, Tomaš; Loide, Valli; Jefimova, JekaterinaMinerals2021 / at. 193 https://doi.org/10.3390/min11020193 https://www.scopus.com/sourceid/21100399705 https://www.scopus.com/record/display.uri?eid=2-s2.0-85100635437&origin=inward&txGid=20815654e15e72203a0e71e99260edcc https://jcr.clarivate.com/jcr-jp/journal-profile?journal=MINERALS-BASEL&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000622850400001
• Thermal behavior of ceramic bodies based on Estonian clay from the Arumetsa deposit with oil shale ash and clinker dust additivesKaljuvee, Tiit; Uibu, Mai; Einard, Marve; Traksmaa, Rainer; Viljus, Mart; Jefimova, Jekaterina; Trikkel, AndresProcesses2022 / art. 46 https://doi.org/10.3390/pr10010046 https://www.scopus.com/sourceid/21100838131 https://www.scopus.com/record/display.uri?eid=2-s2.0-85122134261&origin=inward&txGid=9fd58138851b4f95443a9e5319a1219e https://jcr.clarivate.com/jcr-jp/journal-profile?journal=PROCESSES&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000758454200001
• Thermal behaviour of ceramic bodies based on Estonian clay from Arumetsa deposit with oil shale ash or/and clinker dust additivesKaljuvee, Tiit; Štubna, Igor; Hulan, Tomaš; Uibu, Mai; Einard, Marve; Traksmaa, Rainer; Viljus, Mart; Jefimova, Jekaterina; Trikkel, AndresICTAC 2020 : 17th International Congress on Thermal Analysis and Calorimetry : 8th Joint Czech-Hungarian-Polish-Slovakian Thermoanalytical Conference (V4 8) : 14th Conference on Calorimetry and Thermal Analysis of the Polish Society of Calorimetry and Thermal Analysis (CCTA 14), online conference, [Kraków], 29 August - 2 September 2021 : e-book of abstracts, 20212021 / p. 68 https://cris.vub.be/ws/portalfiles/portal/74787050/_e_Book_of_Abstracts_ICTAC2020.pdf
• Thermal behaviour of Estonian phosphorites from different depositsKaljuvee, Tiit; Tõnsuaadu, Kaia; Traksmaa, Rainer; Einard, Marve; Jefimova, Jekaterina; Petkova, Vilma2nd Journal of Thermal Analysis and Calorimetry Conference, Budapest, June 18–21, 2019 : book of abstracts2019 / p. 134-135 https://jtac-jtacc.akcongress.com/
• Thermal behaviour of Estonian phosphorites from different depositsKaljuvee, Tiit; Tõnsuaadu, Kaia; Traksmaa, Rainer; Einard, Marve; Jefimova, Jekaterina; Petkova, VilmaJournal of thermal analysis and calorimetry2020 / p. 437-449 https://doi.org/10.1007/s10973-019-09056-0 https://www.scopus.com/sourceid/26983 https://www.scopus.com/record/display.uri?eid=2-s2.0-85075427524&origin=inward&txGid=c1fa734bf92689917a0e65333211cc36 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20THERM%20ANAL%20CALORIM&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000571904600039
• Treatment of oil shale processing wastesJefimova, JekaterinaInternational IX Oil Shale Conference 2017 "Oil Shale Industry in Circular Economy" : 15th-16th November 2017, [Jõhvi], Ida-Viru County, Estonia : summary2017 / p. 36 http://www.ester.ee/record=b4751282*est