1. Eco-efficient control of the cooling systems for power transformers;Borowik;J Clean Prod,2016
2. Communication from the Commission to the Council, the European Parliament The European Economic and Social Committee and the Committee of the Regions-a European Strategic Energy Technology Plan (SET-plan)-towards a low carbon future COM/20 07/723 European Commission 2007 http://ec.europa.eu/energy/technology/set_plan/set_plan_en.htm
3. Commission Staff Working Paper SEC 2011 1609 final: materials roadmap enabling low carbon energy technologies (2011) Brussels, Belgium http://ec.europa.eu/research/industrial_technologies/pdf/materials-roadmap-elcet-13122011.pdf
4. Commission regulation (EU) no. 548/2014 of 21 May 2014 on implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to small, medium and large power transformers http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32014R0548&from=IT
5. Department of Energy, CFR part 431 energy conservation program: energy conservation standards for distribution transformers; final rule https://www1.eere.energy.gov/buildings/appliance_standards/pdfs/distribution_transformers_nopr_notice.pdf