1. Hansen, N., in Yield, Flow and Fracture of Polycrystals, Baker, T.N., Ed., London: Applied Science, 1983, p. 311.
2. Thompson, A.W. and Dong, H., in Proc. 7th Int. Conf. on the Strength of Metals and Alloys (Montreal, 1985), McQueen, H.J., Bailon, J.P., Dickson, J.I., Jonas, J.J., and Akben, M.G., Eds., Pergamon, 1986, vol. 1, p. 165.
3. Glezer, A.M. and Pozdnyakov, V.A., Nanostruct. Mater., 1995, vol. 6, p. 767.
4. Kocks, U.F., Metall. Trans., 1970, vol. 1, no. 5, p. 1121.
5. Hirth, J.P., Metall. Trans., 1972, vol. 3, p. 3047.