00474naa#a2200169#i#450# EN\INFRA-M\bibl\6810 20241010225505.4 1998-0701 20150817b2015####ek#y0engy0150####ca RUS RU Method activation end date in the past. direction:re Journal article Moscow INFRA-M Academic Publishing LLC. 2015 7 с. Journal article local Smirnov E. E. naukaru.ru