1. C. Bauer, Contemporary Problems in Dislocation Theory [Russian translation], Mir, Moscow (1968), p. 98.
2. I. T. Suprun, Fiz. Met. Metalloved.,59, No. 4, 661 (1985).
3. A. Granato and K. Luecke, Ultrasound Methods for Dislocation Study [Russian translation], IL., Moscow (1963), p. 27.
4. D. H. Rogers, J. Appl. Phys.,33, No. 3, 781 (1962).
5. I. T. Suprun, Phys. Status Solidi (a),74, No. 2, 411 (1982).