Concept of risk assessment for Estonian oil shale minesPastarus, Jüri-Rivaldo; Sabanov, SergeiEnvironment. Technology. Resources2005 / p. 237-242

Immediate roof stability analysis for new room-and-pillar mining technology in "Estonia" mineSabanov, Sergei; Nikitin, OlegEnvironment. Technology. Resources2005 / p. 262-269

Improved underground mining design methods in Estonian oil shale depositPastarus, Jüri-RivaldoEnvironment. Technology. Resources2005 / p. 270-274