00520naa#a2200193#i#450# EN\\bibl\76188 20250103022116.5 2221-3260 20110825b2011####ek#y0engy0150####ca RUS RU Journal article Yaroslavl Yaroslavl State Technical University 2011 0 с. Journal article local . 332.012.3 RUS Skarzhinskaya Elena Matveevna Chekmarev Vasiliy V. theoreticaleconomy.ru