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2. Council Directive 93/76/CEE of 13 September 1993 to limit carbon dioxide emissions by improving energy efficiency (SAVE).
3. Calificacion Energetica de Viviendas: Fundamentos Técnicos y Manual del Usuario, Madrid, 1999.
4. CALENER (Calificación Energética de edificios). Versión 2.02. Desarrollado por el Grupo de Termotecnia, E.S. Ingenieros de Sevilla, 2003.
5. Directive 2002/91/EC of the European Parliament and of the Council of 16 December 2002 on the energy performance of buildings.