00467naa#a2200181#i#450# EN\\bibl\74521 20240908192149.7 2413-046X 20171225b2017####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2017 0 с. Journal article local Pelymskaya Ol'ga Viktorovna Okmyanskaya Valentina Mihaylovna e-integral.ru