00571naa#a2200229#i#450# EN\\bibl\74844 20241123114725.6 2413-046X 20190125b2019####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2019 0 с. Journal article local . 355.01,330.88 ENG Dobrunova A. I. Dorofeev A. F. Polyakov A. S. Yagutkina E. S. Yagutkin S. M. e-integral.ru