TY - CPAPER AU - Maria Tsinkoburova AU - Larisa Norova TI - ANALYSIS OF FACTORS THAT THREATEN THE SAFETY OF VALUABLE GEOLOGICAL OBJECTS (ON THE EXAMPLE OF SOME RIVER VALLEYS OF THE MAIN DEVONIAN FIELD) T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Science and Technologies in Geology, Exploration And Mining PY - 2021 SP - 11 EP - 20 DO - 10.5593/sgem2021/1.1/s01.002 PB - STEF92 Technology ER -