1. Sandra F. Mendler, William Odell, Mary Ann Lazarus- The HOK Guidebook to Sustainable Design. John Wiley and sons, New Jersey, 2006, ISBN-13: 978-0471696131.
2. Directive 2010/31 of the European Parliament and of the Council of 17 May 2010 on the energy performance of buildings and its amendments (the recast Directive entered into force in July 2010, but the repeal of the current Directive will only take place on 1/02/2012).
3. EUROPEAN COMMISSION (2015), Energy efficiency, Buildings [online]. Available at: https://ec.europa.eu/energy/en/topics/energy-efficiency/buildings .
4. Buildings Performance Institute Europe (BPIE), Europe's buildings under the microscope- A country-by-country review of the energy performance of buildings, BPIE 2011, ISBN: 9789491143014.
5. KENAK (2010), Greek Regulation for the Energy Efficiency of Buildings: Ministerial Decision Δ6/B/οικ.5825/30-03-2010, ΦEKB’407 [online]. Available at: http://www.ypeka.gr/LinkClick.aspx?fileticket=aiS4GyKxx04%3d&tabid=525&language=el-GR .