00447naa#a2200181#i#450# EN\\bibl\74333 20241221195318.6 2413-046X 20170825b2017####ek#y0engy0150####ca ENG RU Journal article Moscow Electronic science 2017 0 с. Journal article local . 574:502/504 ENG Mahotlova Maratina Shagirovna qje.su