1. Directive 2002/91/EC on the energy performance of buildings, Official Journal of EC, 4.1.2003, L 1, 65–71.
2. Cogeneration-Combined Heat and Power (CHP);Horlock,1987
3. Directive 2004/8/EC on the promotion of cogeneration based on a useful heat demand, Official Journal of the EU, 21.2.2004, L 52, 50–60.
4. MODEST: an energy-system optimization model applicable to local utilities and countries;Henning;Energy,1997
5. N. Constantinescu, District Heating across Europe. Trends from East to West, Cogeneration & On-Site Power Production, September 2003, pp. 57–65.