1. Coal ash fouling test;Lin,1982
2. Application of Illinois coal;Newcombe,1980
3. Chlorine in Illinois coal;Gluskoter,1964
4. Removal of sodium from Illinois coal by water extraction;Neavel;Trans. Soc. Min. Eng. AIME,1977
5. The removal of chlorides from coal by leaching;Daybell;J. Inst. Fuel,1959