1. H. Towers, M. Paris, and J. Chipman: AIME Trans., 1953, vol. 197, p. 1455; Journal of Metals, December 1953.
2. E. J. Cohen and H. R. Bruin: Ztsch. für physikalische Chemie, 1923, vol. 103, p. 349.
3. H. S. Carslaw and J. C. Jaeger: Conduction of Heat in Solids. Clarendon Press. Oxford, 1947.
4. J. O’M. Bockris, J. A. Kitchener, S. Ignatowicz, and J. W. Tomlinson: Trans. Faraday Soc., 1952, vol. 48, p. 75.