1. Estonian Power and Heat Association,2021
2. Nõuded Energiamärgise Andmisele Ja Energiamärgisele,2016
3. Energiatõhususe Miinimumnõuded,2015
4. Directive 2010/31/EU of the European parliament and of the Council of 19 may 2010 on the energy performance of buildings (recast);Off. J. European Union,2010
5. Directive 2012/27/EU of the European Parliament and of the Council of 25 October 2012 on Energy Efficiency,2012