00487naa#a2200169#i#450# EN\INFRA-M\bibl\6307 20260102043406.5 1998-071X 20150708b2015####ek#y0engy0150####ca RUS RU On the Calculation of Recirculating Scheme of Quarry Ventilation Journal article Moscow INFRA-M Academic Publishing LLC. 2015 5 с. Journal article local Starostin I. I. zh-szf.ru