1. F. G. Bell, The Experimental Foundations of Solid Mechanics (Springer Berlin, Heidelberg, 1973), p. 813.
2. U. N. Rabotnov, Elements of linear mechanics of solids (Nauka, Moscow, 1977), p. 383.
3. A. Kelly, G. W. Groves, Crystallography and Crystals Defects (Longman, London, 1970), p. 486.
4. A. H. Cottrell, Dislocation and Plastic Flow in Crystals (Clarendon Press, Oxford, 1953), p. 267.
5. U. Messerschmidt, Dislocation Dynamics during Plastic Deformation (Springer, Berlin, 2010), p. 503.