1. Absorption heat pump and working pair developments in Europe until 1974;Stephan,1982
2. A two-stage absorption heat pump for heating and cooling;Kern;IEA Heat Pump Centre Newsletter,1989
3. Absorption cooling practice in Japan — Dutch experts get a close look;Bouma;IEA Heat Pump Centre Newsletter,1993
4. Refrigerant safety;Calm;ASHRAE J,1994
5. Waste heat powered absorption refrigerating plant;Podessor;IEA Heat Pump Centre Newsletter,1990