00526naa#a2200169#i#450# EN\\bibl\51578 20240429021528.1 2500-3372 20220705b2022####ek#y0engy0150####ca RU Labor Productivity of Miners at Open Pits and Mines of the Kemerovo Region Journal article Kemerovo Kemerovo State University 2022 -95 с. Journal article local Batievskaya V B Sokolovskiy Mihail Vladimirovich jcenter.kemsu.ru