LI, B., 		LI, P., 		Sun, D.H., 		Zhang, L.L., 		Wei, C.F., AND 		Borisyuk, Y. A..
" Gas seepage equations of the coal seam under the action of moisture and the stress field" <em>Journal of Power Technologies</em> [Online], Volume 95 Number 4 (30 December 2015)