00464naa#a2200181#i#450# EN\\bibl\76611 20241115020537.5 2221-3260 20180225b2018####ek#y0engy0150####ca RUS RU Journal article Yaroslavl Yaroslavl State Technical University 2018 7 с. Journal article local Elkin Stanislav Evgen'evich theoreticaleconomy.ru