00572naa#a2200181#i#450# EN\INFRA-M\bibl\38796 20250125010519.6 2500-333X 20200720b2020####ek#y0engy0150####ca RU Mineral extraction tax: the problem of determining the taxable item Journal article Moscow INFRA-M Academic Publishing LLC. 2020 5 с. Journal article local Право. Юридические науки. 34 Ryabova I. V. Ivanuschenko E. P. zh-szf.ru