1. The effect of dispersed catalysts on first stage coal Liquefaction;Cugini,1993
2. New Catalytic Materials and Techniques;Utz,1990
3. Study of catalytic effects of mineral matter level on coal reactivity
4. Pyrite catalysis in coal liquefaction;Garg;Ind. Eng. Chem., Process Des. Dev.,1982
5. Use of iron oxide and hydrogen sulfide to improve integrated two-stage coal liquefaction;Paranjape,1984