1. United Nations Environment Programme. Montreal protocol on substances that deplete the ozone layer. Final Act: 1989.
2. Global Environmental Change Report. A brief analysis of the Kyoto protocol; 1997. Vol. IX, No. 24.
3. Air-conditioning and Refrigeration Institute. R22 and R502 alternative refrigerants evaluation program. Arlington, VA; 1992–1997.
4. Working fluids for mechanical refrigeration;Cavallini;Int J Refrigeration,1996
5. Film condensation of binary refrigerant vapors on a horizontal tube;Goto;Proc. 7th Int. Heat Transfer Conf.,1982