1. Directive (EU) 2018/844 of the European Parliament and of the Council of 30 May 2018 amending Directive 2010/31/EU on the energy performance of buildings and Directive 2012/27/EU on energy efficiency
2. Janík, P.: Optimization of energy systems with long-term heat accumulation. Dissertation. Slovak University of Technology in Bratislava, Faculty of Civil Engineering, Slovak Republic 2013, 185 pp., SvF-13422-16657.
3. Kalús, D. et al.: Research Project HZ PG73/2011 – Experimental measurements, analysis, and determination of the optimal rate of use of renewable energy sources on a prototype of a family house EB2020 with nearly zero energy demand. K-TZB SvF STU Bratislava, 2011-2013.
4. http://www.isomax-terrasol.eu/en/technologie/isomax-technologies/roofconstruction-and-solarabsorber.html
5. http://www.isomax-terrasol.eu/fileadmin/_migrated/content_uploads/Presentation_ISOMAX_1108_Slowakei.pdf