1. W.D. Nix and B. Ilschner: Strength of Metals and Alloys, P. Haasen, V. Gerold, and G. Kostorz, Pergamon, Oxford, United Kingdom, 1980, pp. 1503–30.
2. C.R. Barrett and O.D. Sherby: Trans. AIME, 1964, vol. 230, pp. 1322–27.
3. C.R. Barrett, Lytton, and O.D. Sherby: Trans. AIME, 1967, vol. 239, pp. 170–84.
4. D.J. Lloyd and J.D. Embury: Met. Sci., 1970, vol. 4, pp. 6–8.
5. Pahutova, J. Cadek, and P. Rys: Phil. Mag., 1971, vol. 23, pp. 509–17.