Mining block stability analysis in Estonian oil shale mines by statistical methodsPastarus, Jüri-Rivaldo; Tomberg, TõnuEnvironment. Technology. Resources : proceedings of the 3rd International Conference : June 19-21, 20012001 / p. 132-138 : ill Monitoring and analysis of room-and-pillar mining with continuous miner in Estonian oil shale minesNikitin, OlegEnvironment. Technology. Resources : proceedings of the 3rd International Conference : June 19-21, 20012001 / p. 116-121