00508naa#a2200193#i#450# EN\\bibl\74744 20241011132005.5 2413-046X 20181225b2018####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2018 0 с. Journal article local Ahtyrskiy Sergey Petrovich Topchiy Mariya Vladimirovna Churilova Tat'yana Mihaylovna e-integral.ru