1. R. Donkers, M. Vainio, Phase-out of R134a from vehicle air conditioning systems in European Union: latest developments, SAE automotive alternative refrigerant system symposium, Scottsdale, Arizona, June 29–July 1, 2004.
2. Use of carbon dioxide in refrigeration and air conditioning;Billiard;Int J Refrigeration,2002
3. Operation of trans-critical CO2 vapour compression circuits in vehicle air conditioning;Pettersen,1994
4. Determination of the optimum high pressure for transcritical CO2-refrigeration cycles;Kauf;Int J Therm Sci,1999
5. A correlation of heat rejection pressures in transcritical carbon dioxide cycles;Liao;Appl Therm Eng,2000