00449naa#a2200181#i#450# EN\\bibl\74190 20241126034910.2 2413-046X 20170325b2017####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2017 0 с. Journal article local . 338.43(470.13):330.101.542 ENG Palev A I e-integral.ru