00554naa#a2200205#i#450# EN\\bibl\74380 20250220174451.4 2413-046X 20171025b2017####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2017 0 с. Journal article local Nazarov Dmitriy Mihaylovich Tovmasyan Natal'ya Dmitrievna Begicheva Svetlana Viktorovna Nazarov Anton Dmitrievich e-integral.ru