1. R. C. Gifkiias, "Fracture", p. 579. 1959: London (Chapman and Hall).
2. F. Garofalo, "Fundamentals of Creep and Creep-Rupture in Metals ". 1965: New York (Macmillan); London (Collier-Macmillan).
3. D. McLean, Grain Boundaries in Metals". 1957: Oxford (Clarendon Press).