• Risk assessment of geological conditions for selective extraction of oil shale in "Estonia" mineSabanov, Sergei; Pastarus, Jüri-Rivaldo; Viil, Allan15th Meeting of the Association of European Geological Societies "Georesources and public policy : research, management, environment" : 16-20 September 2007, Tallinn, Estonia : abstracts2007 / p. 59 https://www.ester.ee/record=b2291667*est