1. G. Harmond, A. Tsang, Gasification Eng. Corp., Houston, TX, Quarterly Technical Progress Report No. 11, For the Period April 1 – June 30, 2002; Prepared For U.S. Department of Energy, Cooperative Agreement No. DE-FC26-99FT40659; Report Date: March 14, 2003.; available online: http://www.osti.gov/bridge/purl.cover.jsp?purl=/823703-EhUFVk/native/; accessed 20.07.2007.
2. A. Tsang, ConocoPhillips Company, Houston, TX, Quarterly Technical Progress Report No. 17, for the Period October 1 – December 31, 2003; Prepared For U.S. Department of Energy, Cooperative Agreement No. DEFC26- 99FT40659. Report Date: March 26, 2004.; available online: http://www.osti.gov/energycitations/purl.cover.jsp?purl=/812122-aGic82/native/; accessed 20.07.2007.
3. http://www.fossil.energy.gov/programs/projectdatabase/stateprofiles/2004/Texas.html; accessed 20.05.2006.
4. Gasification of petcoke using E-Gas technology at Wabash River;Amick,2000
5. http://www.coptechnologysolutions.com/egas/index_home.htm;… accessed 03.06.2006.