00462naa#a2200181#i#450# EN\\bibl\74368 20241122010046.5 2413-046X 20170825b2017####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2017 0 с. Journal article local Shagayda Natal'ya Ivanovna Fomin Aleksandr Anatol'evich e-integral.ru