B. N. Zarovnyaev, Grigoriy V. Shubin, A. A. Dmitriev, Maria E Budikina, Maria P. Sobakina. INSTRUMENTAL MONITORING OF THE STATE OF LEDGES AND BERM SIDES OF DEEP KIMBERLITE QUARRIES. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Science and Technologies in Geology, Exploration And Mining, 2020, pp. 145-154. https://doi.org/10.5593/sgem2020/1.2/s03.019