Free Methodical Fundamentals of Air Consumption Calculation for Mine Working Ventilation at the Operation of Machines and Mechanisms with Internal Combustion Engines Gendler S.G., Gridina E.B., Egorova N.A., Kozyrev S.A., Sogrin B.B. DOI: 10.24000/0409-2961-2020-4-45-51 Year: 2020 Issue num: 4 more