Rudniev, Y., M. Antoshchenko, M. Filatiev, E. Filatieva, and V. Tarasov. “Analysis of Metamorphism and Tendency of Coal Seams and Their Hazardous Properties”. Technology Audit and Production Reserves, vol. 5, no. 3(67), Oct. 2022, pp. 11-14, doi:10.15587/2706-5448.2022.266455.