1. Directive 2009/125/EC of the European Parliament and the council of 21st October 2009, establishing a framework for the setting of ecodesign requirements for energy-related products, 2009.
2. Directive 2012/27/EU of the european parliament and of the council of 25 October 2012 on energy efficiency, amending Directives 2009/125/EC and 2010/30/EU and repealing Directives 2004/8/EC and 2006/32/EC. Official Journal of the European Union, 2012. L 315/1, 2012.
3. International Organization for Standardization : DIN EN ISO 50001:2011 - Energy management systems, 2011.
4. International Organization for Standardization ISO/CD 14955-1, Environmental Evaluation of Machine. Tools, Standard under development.
5. Förtsch, G., Meinholz, H., Energiemanagementsystem nach DIN EN ISO 50001, in Handbuch Betriebliches Umweltmanagement 2014, Springer Fachmedien Wiesbaden. p. 376-417.