Ageing of kukersite thermobitumenSokolova, Julia; Tiikma, Laine; Bitjukov, Mihhail; Johannes, IlleOil shale2011 / 1, p. 4-18 : ill Co-conversion of Salix biomass and oil shale in the medium of supercritical waterLuik, Hans; Palu, Vilja; Tamvelius, Hindrek; Luik, Lea; Sokolova, Julia16th European Biomass Conference & Exhibition : from Research to Industry and Markets : proceedings of the International Conference held in Valencia, Spain, 2-6 June 20082008 / p. 2007-2009 Comparative hydroliquefaction of pine Pinus sylvesteris wood and bark [Electronic resource]Luik, Hans; Luik, Lea; Vink, Natalia; Kozõreva, Jekaterina; Sokolova, Julia15th European Biomass Conference & Exhibition : from Research to Market Deployment : Florence, Italy2007 / p. 1951-1954 [CD-ROM] https://www.etis.ee/Portal/Publications/Display/4b3b9aa0-26f4-4ddd-81f7-6d0e5095e579 Co-processing of biomass and heavy shale oil using catalytical hydrocracking methodLuik, Hans; Luik, Lea; Johannes, Ille; Tiikma, Laine; Sokolova, Julia17th European Biomass Conference & Exhibition from Research to Industry and Markets : proceedings of the International Conference held in Hamburg, Germany, 29 June - 3 July 20092009 / p. 1082-1084 Co-processing of oil shale with some other energy sourcesLuik, Hans; Bojesen-Koefoed, Jorgen; Luik, Lea; Palu, Vilja; Sokolova, Julia; Tamvelius, Hindrek; Tiikma, LaineInternational Oil Shale Symposium : Tallinn, Estonia, June 8-11, 2009 : future energy solutions : come and share your vision!2009 / p. 71-72 http://www.ester.ee/record=b4775098*est Copyrolysis of Estonian oil shale and peatSokolova, Julia; Luik, Hans; Palu, ViljaInternational Oil Shale Symposium : Tallinn, Estonia, June 8-11, 2009 : future energy solutions : come and share your vision!2009 / p. 75 http://www.ester.ee/record=b4775098*est Dissolution kinetics of oil shale thermobitumen in different solventsJohannes, Ille; Tiikma, Laine; Sokolova, JuliaInternational Oil Shale Symposium : Tallinn, Estonia, June 8-11, 2009 : future energy solutions : come and share your vision!2009 / p. 69-70 http://www.ester.ee/record=b4775098*est Dissolution rate of oil shale thermobitumen in different solventsJohannes, Ille; Tiikma, Laine; Sokolova, JuliaOil shale2009 / 3, p. 399-414 : ill Effect of the concentration of organic matter on the yield of thermal bitumen from the Baltic oil shale kukersiteTiikma, Laine; Sokolova, Julia; Vink, NataliaSolid fuel chemistry2010 / p. 89-93 : ill https://link.springer.com/article/10.3103/S0361521910020035 Peat semicoking and hydrocrackingLuik, Hans; Palu, Vilja; Luik, Lea; Sokolova, Julia; Bojesen-Koefoed, JorgenJournal of analytical and applied pyrolysis2009 / 1/2, p. 497-501 : ill https://www.sciencedirect.com/science/article/abs/pii/S0165237008001241 Peat semicoking and hydrocrackingLuik, Hans; Palu, Vilja; Luik, Lea; Sokolova, JuliaAdvances in Analytical and Applied Pyrolysis 2006-2008 : book of abstracts of the communications presented to the 18th International Symposium on Analytical and Applied Pyrolysis : Lanzarote, Canary Islands, May 18-23, 20082008 / p. 248 https://www.sciencedirect.com/science/article/pii/S0165237008001241 Separation of thermobitumen from oil shale mineral partTiikma, Laine; Sokolova, Julia; Vink, NataliaInternational Oil Shale Symposium : Tallinn, Estonia, June 8-11, 2009 : future energy solutions : come and share your vision!2009 / p. 78 http://www.ester.ee/record=b4775098*est Termobituumeni eraldamine põlevkivi mineraalosastSokolova, Julia; Tiikma, Laine; Vink, NataliaXXXI Eesti keemiapäevad : [28. aprill 2010, Tallinn] : teaduskonverentsi teesid = 31st Estonian Chemistry Days : abstracts of scientific conference2010 / lk. 75 Termochemical co-liquefaction of biomass wastes and Estonian oil shale [Electronic resource]Luik, Lea; Luik, Hans; Bitjukov, Mihhail; Kruusement, Kristjan; Sokolova, Julia; Tamvelius, HindrekSuccess & visions for bioenergy. Thermal processing of biomass for bioenergy, biofuels and bioproducts2007 / [8] p. [CD-ROM] Влияние содержания органического вещества на выход термобитума из Прибалтийского сланца-кукерситаTiikma, Laine; Sokolova, Julia; Vink, NataliaХимия твердого топлива2010 / 2, с. 25-30 : ил