1. Hollomon, J. H., and Fisher, J. C. (see Suzuki, T., “Dislocations and Mechanical Properties of Crystals (An International Conference)”, 215 (Wiley, New York, and Chapman and Hall, London, 1957).
2. Jeszenszky, B., Acta Phys. Hung., 8, 147 (1957); Nature, 181, 499 (1958).
3. Gilman, J. J., and Johnston, W. G., J. App. Phys., 27, 1018 (1956).
4. Gilman, J. J., and Johnston, W. G., “Dislocations and Mechanical Properties of Crystals (An International Conference)”, 116 (Wiley, New York, and Chapman and Hall, London, 1957).