00548naa#a2200205#i#450# EN\\bibl\74199 20241228062818.6 2413-046X 20170325b2017####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2017 0 с. Journal article local . 002:338.43(470) ENG Medennikov Viktor Ivanovich Muratova Lyudmila Georgievna Sal'nikov Sergey Georgievich e-integral.ru