1. BPIE, Europe’s Buildings Under the Microscope − a country-by-country Review of the Energy Performance of Buildings, 2011.
2. European Commission, Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions −A Roadmap for Moving to a Competitive Low Carbon Economy in 2050, 2011.
3. European Parliament and Council of the European Union, Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings (recast), 2010.
4. European Commission, ‘Report from the Commission to the European Parliament and the Council: Progress of Member States Towards Nearly-Zero Energy Buildings’ Brussels, 2013.
5. European Commission, Report from the Commission to the European Parliament and the Council: Progress by Member States in reaching cost-optimal levels of minimum energy performance requirements, Brussels, 2016.