Alabev , V. R., V. D. Ashihmin, O. V. Plaksienko, and R. A. Tishin. 2020. “Prospects for Industrial Methane Production in the Mine n.A. V.M.Bazhanov Using Vertical Surface Wells”. Journal of Mining Institute 241 (February), 3-9. https://doi.org/10.31897/pmi.2020.1.3.