1. 2012 Integrated Gasification Combined Cycle (IGCC) Research and Development Roadmap: Technology Development for Improved Performance and Economics;Schoff,2012
2. K. S. Lackner, H. J. Ziock, D. P. Harrison, “Hydrogen Production from Carbonaceous Material”, U. S. Patent 6790430. Sep. 14, 2004.
3. Some technical issues of zero-emission coal technology;Grzegorz;Int. J. Hydrogen Energy,2006
4. Kinetics of carbon gasification - interaction of hydrogen with low temperature char at 1500° to 1700 °F;Zielke;Ind. Eng. Chem.,1955
5. Hydrogenating coal at 800 °C;Hiteshue;Ind. Eng. Chem.,1957