00533naa#a2200205#i#450# EN\\bibl\74520 20241125171858.1 2413-046X 20171225b2017####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2017 0 с. Journal article local Otvagina M. G. Shapovalov D. A. Doncov Aleksandr Vladimirovich Luk'yanova Tat'yana Semenovna e-integral.ru