8Mazumder B, Saikia P C, Sain B. Desulphurization of high-sulfur coals of north-east India coal fields by organometallic compuds[J]. Fuel, 1989, 68(3):610-615.
10Mazunder B,Saikia P C,Sain B.Desulfurization of High-sulfur Coals of North-east India Coal Fields by Organomentallic Compounds[J].Fuel,1989,68(3):610-615.