1. European Council (2002) Directive 2002/91 of the European Parliament and of the Council on the energy performance of buildings
2. National Action Plan for Energy Efficiency 2017–2020 in Spain (2016)
3. American Society for Healthcare Engineering (2015) High performance hospital partnerships: reaching the 2030 challenge and improving the health, and healing environment
4. Madrid Energy Foundation (2010) Guía de Ahorro y Eficiencia Energética en Hospitales
5. Santamouris M, Dascalaki E, Balaras C et al (2008) Energy performance and energy conservation in health care buildings in Hellas. Energy Convers Manag 35(4):293–305