1. Polish energy policy until the year 2030., March 2009, Project of 05.03.2009, Ministry of Economy (Warsaw).
2. Ratafia-Brown J., Manfredo L., Hoffmann J., Ramazan M. Major environmental aspects of gasification-based power generation technologies. 2002, Final report, U.S. Department of Energy, Office of Fossil Energy, National Energy Technology Laboratory.
3. Rosenberg W. G., Dwight C. A., Walker M. R. Deploying IGCC technology in this decade with 3 party covenant financing: volume I. ENRP discussion paper, discussion paper 2004-07, Belfer Center for Science and International Affairs, Kennedy School of Government, Harvard University, Cambridge, Massachusetts, May 2005, revision.