Antsiferov, A. V., V. A. Antsiferov, M. G. Tirkel, A. A. Maiboroda, and A. A. Gluhov. “Application of Seismic Prospecting in Solving the Problem of Methane Extraction of Coal-Bearing Formations”. Geofizicheskiy Zhurnal, vol. 32, no. 5, Oct. 2010, pp. 117-25, doi:10.24028/gzh.0203-3100.v32i5.2010.117515.