TY JOUR TI Theoretical principals of forecasting gas situations in the mines with carbonic acid emission KW gas emission KW coal KW face production area KW gas content KW gas changing KW coal seam KW mathematical model KW thermodynamical system. JO Economy of the XXI century: innovations, investments, education AU Kachurin, N.. AU Perelygin, I.. PY 2016 IS 4 PB LLC Information and publishing center Innovations and investments