1. Energy and food production;Breirem,1983
2. Stempelkompressor eller skruekompressor?;Brendeng;Scan Refrig,1975
3. The efficient use of energy;Dryden,1982
4. Energy efficiency performance of large refrigeration compressors;Fleming,1978
5. Leveringsgrad og virkningsgrad for kjolekompressorer;Lorentzen,1949