00512naa#a2200193#i#450# EN\\bibl\74663 20241122195622.5 2413-046X 20181025b2018####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2018 0 с. Journal article local . 339.54.012+338.001.36 ENG Emel'yanova Tamara Alekseevna Doncov Aleksandr Vladimirovich e-integral.ru