Methodology for the Selection of In-Seam Gas Drainage System for Intensive and Safe Coal Mining SynopsEvgeny Yutyaev, Evgeny Mazanik, Sergey Slastunov and Andrian BatuginE3S Web Conf., 105 (2019) 01032DOI: https://doi.org/10.1051/e3sconf/201910501032