1. In focus: Energy efficiency in buildings, Brussels, 2020. https://ec.europa.eu/info/news/focus-energy-efficiency-buildings-2020-feb-17_en.
2. BPIE, Europe ’ s buildings under the microscope, Buildings Performance Institute Europe, 2011. https://doi.org/ISBN: 9789491143014.
3. EPBD, Energy performance of buildings directive 2010/31/EU (recast), Off. J. Eur. Union. (2010). https://doi.org/doi:10.3000/17252555.L_2010.153.eng.
4. Commission Delegated Regulation No 244/2012, 2012. http://www.buildup.eu/sites/default/files/content/l_08120120321en00180036.pdf.
5. Guidelines accompanying Commission Delegated Regulation (EU) No 244/2012 of 16 January 2012 supplementing Directive 2010/31/EU of the European Parliament and of the Council (2012/C 115/01), Brussels, Belgium, 2012.