00511naa#a2200193#i#450# EN\\bibl\74930 20241123155040.6 2413-046X 20190325b2019####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2019 0 с. Journal article local . 332.7+349.414+349.418+349.442 ENG Rybkina Alina Mihaylovna Demidova Polina Mihaylovna e-integral.ru