1. World energy outlook 2012,2012
2. Exxon catalytic coal gasification process predevelopment program final project report;Kalina,1978
3. Kinetics of the K2CO3-catalyzed steam gasification of carbon and coal;Guzman;Ind Eng Chem Process Des Dev,1982
4. http://www.netl.doe.gov/technologies/coalpower/gasification/gasifipedia/4-gasifiers/4-1-4-4_catalytic.html [accessed 01.04.12].
5. http://www.netl.doe.gov/technologies/coalpower/gasification/gasifipedia/4-gasifiers/4-1-3-2_gpe.html [accessed 01.04.12].