1. EPBD recast: Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the Energy Performance of Buildings (recast). http://ec.europa.eu/energy/efficiency/buildings/buildings_en.htm; http://eur-lex.europa.eu/JOHtml.do?uri=OJ:L:2010:153:SOM:EN:HTML.
2. European Commission, Energy Directorate General, Meeting Document for the Expert Workshop on the Comparative Framework Methodology for Cost Optimal Minimum Energy Performance Requirements, In Preparation of a Delegated Act in Accordance with Art 290 TFEU 6 May 2011 in Brussels. http://ec.europa.eu/energy/efficiency/buildings/doc/draft_regulation.pdf.
3. Michaela Holl, the European Commission, DG Energy. The EU Policy Framework for Energy Efficient Buildings – The EPBD Recast and Beyond. http://www.rehva.eu/download/_/tllsem190511/ts1_holl_eu-policy-framework-for-energy-efficient-buildings.pdf.
4. M. Spiekman, ASIEPI Information Paper P192. Comparing Energy Performance Requirement Levels: Method and Cross Section Overview. http://www.asiepi.eu/wp-2-benchmarking/information-papers.html.
5. Zero energy building – a review of definitions and calculation methodologies;Marszal;Energy and Buildings,2011