00463naa#a2200181#i#450# EN\\bibl\74484 20260213014720.5 2413-046X 20171025b2017####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2017 0 с. Journal article local Konkin Aleksandr Nikolaevich Borovkova Marina Alekseevna e-integral.ru