Stadnik, Mykola, Dmytro Semenchenko, Anatoly Semenchenko, Pavlo Belytsky, Svitlana Virych, and Viktor Tkachov. 2019. “Improving Energy Efficiency of Coal Transportation by Adjusting the Speeds of a Combine and a Mine Face Conveyor”. Eastern-European Journal of Enterprise Technologies 1 (8 (97):60-70. https://doi.org/10.15587/1729-4061.2019.156121.