Author: Mezhdunarodnai︠a︡ nauchno-prakticheskai︠a︡ konferent︠s︡ii︠a︡ "Ėnergeticheskai︠a︡ bezopasnostʹ Rossi: novye podkhody k razvitii︠u︡ ugolʹnoĭ promyshlennosti" (12th 2010 Kemerovo,Russia)