00450naa#a2200181#i#450# EN\\bibl\74621 20241126055212.2 2413-046X 20180825b2018####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2018 0 с. Journal article local . 502:574 ENG Mahotlova Maratina Shagirovna e-integral.ru