1. L. Radulov, N. Kaloyanov, H. Petran, D2.1 Report on the Preliminary Assessment of Public Building Stock, http://www.republiczeb.org, 2014.
2. Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the Energy Performance of Buildings (recast). Official Journal of the EUL 153, 18 June 2010, pp. 13-35.
3. Directive 2012/27/EU of the European Parliament and of the Council of 25 October 2012 on energy efficiency. Official Journal of the EUL 315, 14 November 2012, pp. 1-56.
4. SR EN ISO 7345:1995 Thermal insulation – Physical quantities and definitions.
5. ISO 10211:2007 Thermal bridges in building construction -- Heat flows and surface temperatures -- Detailed calculations.