Monitoring and stability analysis in Estonian oil shale minesNikitin, Oleg; Pastarus, Jüri-Rivaldo; Sokolov, Pavel11th International Congress of the International Society for Mine Surveying : Crakow, Poland, September 2000. Vol. 22000 / p. 319-329 : ill https://kirjandus.geoloogia.info/reference/33731