1. D. McFarland, Energy, efficiency, and the environment, in: 6th Gustav Lorentzen Natural Working Fluids Conference, University of Glasgow, UK, 2004.
2. European Commission Directorate-General for Energy and Transport, Europa. EU-15 European Energy and Transport Trends to 2030, 2003.
3. Solid sorption: an alternative to CFCs;Meunier;Heat Recovery Systems & CHP,1993
4. MyCom (Canada), Technical brochure. .
5. Refrigeration and Air Conditioning;Stoeker,1982