1. UNFCCC. India's intended nationally determined contribution. United Nations Framework Convention on Climate Change; 2015. Retrieved: 25.02.2016. 〈http://www4.unfccc.int/submissions/INDC/PublishedDocuments/India/1/INDIAINDCTOUNFCCC.pdf〉.
2. DECC. Climate change explained – UK government action. UK government, Department of Energy & Climate Change; 2016. Retrieved: 25.02.2016. 〈https://http://www.gov.uk/guidance/climate-change-explained-uk-government-action〉.
3. SFOE. Energy Strategy 2050. Swiss Federal Office of Energy SFOE; 2016. Retrieved: 07.01.2016. 〈http://www.bfe.admin.ch/themen/00526/00527/index.html?lang=en〉.
4. Federal Ministry for Economic Affairs and Energy (BMWi), Making a success of theenergy transition - On the road to a secure, clean and affordable energy supply, 2015, Berlin (Retrieved: Access 2017) (http://www.bmwi.de/Redaktion/EN/Publikationen/making-a-success-of-the-energy-transition.pdf?__blob=publicationFile&v=6).
5. Renewable energy: back the renewables boom;Trancik;Nature,2014