00505naa#a2200193#i#450# EN\\bibl\74880 20250720121143.7 2413-046X 20190325b2019####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2019 0 с. Journal article local . 332.33(571.53) ENG Tulunova Evgeniya Stepanovna Chernigova Dina Rashitovna stolypinvestnik.ru