00497naa#a2200193#i#450# EN\\bibl\74391 20241122143446.5 2413-046X 20171025b2017####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2017 0 с. Journal article local . 338.4.021.8 ENG Sagaydak Aleksandr Ernestovich Sagaydak Anna Alekseevna e-integral.ru