1. Directive 2002/91/EC of the European Parliament and of the Council of 16 December 2002 on the Energy Performance of Buildingshttp://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex:32002L0091
2. Energy in Figures. Statistical Pocketbook 2016https://publications.europa.eu/en/publication-detail/-/publication/c3d179b2-9a82-11e6-9bca-01aa75ed71a1
3. Commission of the European Communities Action Plan for Energy Efficiency: Realising the Potentialhttp://ec.europa.eu/smart-regulation/impact/ia_carried_out/docs/ia_2006/sec_2006_1174_en.pdf
4. Energy efficiency and thermal behaviour of attached sunspaces, in the residential architecture in Spain. Summer Conditions
5. Energy Intervention in the residential sector in the south of Spain: Current challenges;Domínguez Amarillo;Inf. Constr.,2013