Basics for geotechnical engineering explorations considering needed legal changes = Insenergeoloogiliste uuringute alused arvestades vajalikke muudatusi valdkonda käsitlevas õigusruumisTammemäe, Olavi2008 https://digi.lib.ttu.ee/i/?237 https://www.ester.ee/record=b2430406*est

Economic model oil shale flows and cost = Põlevkivi kaubavoogude ja hinna majandusmatemaatiline mudelTammeoja, Tauno2008 https://www.ester.ee/record=b2384902*est

Geographical information system for oil shale mining - MGISValgma, Ingo2002 https://www.ester.ee/record=b1646035*est

Groundwater sulphate content changes in Estonian underground oil shale minesErg, Katrin2005 https://www.ester.ee/record=b2045349*est