1. European Commission. Limiting global climate change to 2 degrees celsius, The way ahead for 2020 and beyond. Communication from the commission to the Council, the European Parliament, the European economic and social committee and the committee of the regions. Commission of the European communities; 2007.
2. Swedish Government Offices. Regeringens proposition 2008/09:162, En sammanhållen klimat- och energipolitik - Klimat. Stockholm, Sweden: Swedish Government Offices, 2009 [in Swedish].
3. European Commission. An energy policy for Europe. Communication from the commission to the European Council and the European Parliament. Commission of the European communities; 2007.
4. Climate change 2007: Mitigation. Contribution of working group III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change;Metz,2007
5. Pachauri RK, Reisinger A. IPCC Core Writing Team. Climate Change 2007: Synthesis Report. Contribution of Working Groups I, II and III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Geneva, Switzerland: IPCC; 2007.