00509naa#a2200193#i#450# EN\\bibl\74654 20241126125711.2 2413-046X 20180825b2018####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2018 0 с. Journal article local . 334.723+331.103.5 ENG Matveeva Alla Ivanovna Sarapul'ceva Anastasiya Vyacheslavovna e-integral.ru