1. L. M. Kachanov, The Theory of Creep [in Russian], Fizmatgiz, Moscow (1960).
2. G. S. Pisarenko, V. N. Kiselevskii, et al., Probl. Prochn., No. 4 (1974).
3. V. A. Tsykanov, N. P. Losev, et al., Probl. Prochn., No. 1 (1977).
4. V. N. Kiselevskii, V. K. Lukashev, et al., Probl. Prochn. No. 9 (1974).
5. F. Garzarolli, K. P. Francke, et al., J. Nucl. Mater., 28, No. 3, 280?290 (1968).