1Itay M.Hill C R.Glasser D. Study of the low tempera- ture oxidation of coal.Fuel Processing Technology,1989,21 (2): 81-97.
2Continillo G.Galiero G.Maffettone P L.etc.Characteriza- tion of chaotic in the spontaneous combustion of coal stock- piles.Symposium on combustion, 1996.1585-1592.