Bryan, A. 2006. Integration of combined heat and power generatores into small buildings. MS diss., Waterloo University.
 Barbir, Frono. 2005. Pem fuel cells theory and practice. Connecticut: University of Connecticut Storrs.
 Worth, James. 2005. Micro-cooling, heating, and power (m-chp) instructional module. Mississippi: University of Mississippi.
 Gunter R. Simader, Robert krawinkler, George Trnka. 2006. Micro chp systems state-of-the-art. Vienna: Austrian energy agency.
 Lemar, Paul. 2002. Integrated energy systems for buildings: a market assessment. Oak ridge, Tennessee: U.S. Department of energy.
 Nunez, Tomas. 2010. Polysmart. Fraunhofer: Fraunhofer institute for solar energy system ISE.
 Chiristian Olsen, A. 2009. Solid oxid fuel cell micro combined heat and power system-choosing the right reformer. Ms theiss, Aalborg University.