1. Climate Change 2007: The Physical Science Basis, Summary for Policymakers, Intergovernmental Panel on Climate Changehttp://www.ipcc.ch
2. International Energy Agencyhttps://www.iea.org
3. The World State of the World. Innovations for a Sustainable Economyhttps://www.worldwatch.org
4. Probabilistic Analysis of Plug-In Electric Vehicles Impact on Electrical Grid Through Homes and Parking Lots
5. Directive 2009/28/EC of the European Parliament and of the Council of 23 April 2009 on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EChttp://eur-lex.europa.eu/legal-content/EN/ALL/?uri=celex%3A32009L0028