00506naa#a2200181#i#450# EN\INFRA-M\bibl\7991 20241116063908.6 1998-071X 20150825b2015####ek#y0engy0150####ca RUS RU Environmental Safety: Condition, Problems, Prospects Journal article Moscow INFRA-M Academic Publishing LLC. 2015 7 с. Journal article local Ermakov A. Ermakov Dmitriy naukaru.ru