00513naa#a2200193#i#450# EN\\bibl\74504 20241122012210.5 2413-046X 20171225b2017####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2017 0 с. Journal article local Fomin Aleksandr Anatol'evich Doncov Aleksandr Vladimirovich Luk'yanova Tat'yana Semenovna e-integral.ru