00445naa#a2200169#i#450# EN\\bibl\76630 20241125201909.1 2221-3260 20180425b2018####ek#y0engy0150####ca RUS RU Journal article Yaroslavl Yaroslavl State Technical University 2018 7 с. Journal article local Varavva Margarita Yur'evna theoreticaleconomy.ru