1. D. A. Donovan, Metall. Trans. A 7, 1677 (1976).
2. C. A. Wert, Hydrogen in Metals, Ed. by G. Alefeld and J. Volkl (Springer, Berlin, 1978), p. 369.
3. V. S. Sevast’yanov, B. K. Zuev, N. E. Babulevich, et al., Fiz.-Khim. Mekh. Mater., No. 4, 47 (1990).
4. I. Lundström, Sens. Actuators, No. 1, 403 (1981).
5. A. Babichev, N. Babulevich, S. Lazarev, et al., Sens. Actuators, No. 13–14, 362 (1993).