1. T.A. Edison, US Patent No. 460, 1222 (1891).
2. W.W. Jaques, US Patent No. 555, 511 (1896).
3. Direct carbon fuel cell: Fundamentals and recent developments
4. Presented in Fuel Cell Seminar, Direct Carbon Fuel Cell Workshop;Cooper,2005
5. Presented in Direct Carbon Fuel Workshop;Cooper,2003