00652naa#a2200169#i#450# EN\URAL'SKIY GOSUDARSTVENNYY AGRARNYY UNIVERSITET\bibl\2495 20240521171649.2 20180517b2018####ek#y0engy0150####ca RU REQUIREMENTS FOR AIR PURIFICATION AT MAINTENANCE STATIONS Conference article/thesis Ekaterinburg Ural State Agrarian University 2018 3 с. Conference article/thesis local Биологические науки. 57 Общие вопросы сельского хозяйства. 68.01 grnti Yuriy D. A. usau.editorum.ru