1. Official Journal of the European Union, Directive 2012/27/EU of the European Parliament and of the Council of 25 October 2012 on energy efficiency, amending directives 2009/125/EC and 2010/30/EU and repealing directives 2004/8/EC and 2006/32/EC. Available from: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2012:315:0001:0056:EN:PDF.
2. European Commission, Energy efficiency plan 2011, Available from: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=COM:2011:0109:FIN:EN:PDF.
3. Cogeneration – investment dilemma;Radulovic;Energy,2012
4. Potential for combined heat and power and district heating and cooling from waste-to-energy facilities in the U.S. – learning from the Danish experience;Ulloa,2007
5. An analyses of the legal and market framework for the cogeneration sector in Croatia;Loncar;Energy,2009