1. WMO (World Meteorological Organization), Scientific Assessment of Ozone Depletion: 2006, Global Ozone Research and Monitoring Project, Report No. 50, Geneva, Switzerland, 2007
2. IPCC, Contribution of Working Group 1 to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, ed. S. Solomon, D. Qin, M. Manning, M. Marquis, K. B. Averyt, M. M. B. Tignor, H. L. Miller Jr, Z. Chen, Cambridge Unversity Press, Cambridge, United Kingdon and New York, NY, USA, 2007
3. The European Parliament and the Council of the European Union, Directive 2006/40/EC of the European Parliament and of the council of 17 May 2006 relating to emissions from air-conditioning systems in motor vehicles and amending council directive 70/156/EEC, L 161/12, 2006
4. The European Parliament and the Council of the European Union, Regulation (EC) No 842/2006 of the European Parliament and of the council of 17 May 2006 on certain fluorinated greenhouse gases, L 161/1, 2006
5. Mobile Air Conditioners Summit, Phasing out HFC-134a from mobile air conditioning in the largest car market in the world, www.mac-summit.com, Saalfelden, Austria, 2006