1. D. Broek, Principles of Fracture Mechanics, Nauka, Moscow (1985).
2. P. M. Vitvitskii, V. V. Panasyuk, and S. Ya. Yarema, "Plastic strains near cracks and fracture criteria," Probl. Prochn., No. 2, 3?18 (1973).
3. V. I. Vladimirov, Physical Nature of the Fracture of Metals [in Russian], Metallurgiya, Moscow (1984).
4. V. S. Ivanova, Fracture of Metals [in Russian], Metallurgiya, Moscow (1970).
5. A. A. Kaminskii, Fracture of Viscoelastic Bodies with Cracks [in Russian], Nauk. Dumka, Kiev (1990).