1. Extraction of coal using supercritical water;Deshpande;Fuel,1984
2. Liquefaction of lignite using low cost supercritical solvents;Scarrah,1983
3. Gasification process;Modell,1978
4. The effect of solvent properties on the supercritical gas extraction of coal;Jezko;Fuel Processing Technology,1982
5. Sovent effects in supercritical extraction of coal;Vasilakos;Amer. Chem. Soc., Div. Fuel Chem., Prepr.,1983