1. Directive 2004/8/EC of the European Parliament and of the Council of 11 February 2004 on the promotion of cogeneration based on a useful heat demand in the internal energy market and amending Directive 92/42/EEC.
2. Directive 2003/87/EC of the European Parliament and of the Council of 13 October 2003 establishing a scheme for greenhouse gas emission allowance trading within the Community and amending Council Directive 96/61/EC (Text with EEA relevance).
3. SAVE Project ‘CHP statistics and impacts of the Gas directive on the future development of CHP in Europe’. SAVE 2000 Contract no. 4.1031/C/00-027/2000. DG TREN European Commission.
4. Fundamentos de Financiación Empresarial;Brealey,1993
5. Council Directive 96/61/EC of 24 September 1996 concerning integrated pollution prevention and control.