1. R. Dworak and H. Wendt,Ber. Bunsengesellschaft Phys. Chem. 80 (1976) 78.
2. M. Fleischmann, R. E. W. Jansson and R. J. Marshall (to be published).
3. M. Fleischmann, R. E. W. Jansson and J. Ghoroghchian (to be published).
4. M. Fleischmann, R. E. W. Jansson and R. J. Marshall, Brit. Prov. Pat. 04939/76 (April 1976).
5. F. Kreith,Internat. J. Heat Mass Transfer 9 (1966) 265.