00668naa#a2200193#i#450# EN\\bibl\131553 20260722113042.3 1998-8990 20260720b2026####ek#y0engy0150####ca RU JUSTIFICATION OF SAFE TECHNOLOGY FOR THE EXPLOITATION OF MOUNTAIN RIVER RESOURCES Journal article Saint-Petersburg Saint-Petersburg University of State Fire Service of Emercom of Russia 2026 10 с. Journal article local Горное дело. 622 Karpova Zhanna V. Yakheev Valery Vasilievich Akterskiy Yury Evgen'evich journals.igps.ru