1. A magnetic field source system for magnetic refrigeration;Allab,2005
2. Barclay, J.A., Steyert, W.A., 1982. Active magnetic regenerator, US patent No. 4332135.
3. Use of a ferrofluid as the heat-exchange fluid in magnetic refrigerator;Barclay;Journal of Applied Physics,1982
4. Barclay, J.A., 1983. Wheel-type magnetic refrigerator, US patent No. 4408463.
5. Barclay, J.A., Overton W.C., Stewart W.F., 1984. Magnetic refrigeration apparatus and method, US patent No. 4459811.