00544naa#a2200205#i#450# EN\\bibl\74585 20250727072709.7 2413-046X 20180625b2018####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2018 0 с. Journal article local . 338.24+338.43 ENG Karpuzova Vera Ivanovna Chernysheva Kira Vladimirovna Karpuzova Nadezhda Vasil'evna e-integral.ru