1. V. P. Pogodin, V. L. Bogoyavlenskii, and V. P. Sentyurev, Intercrystallite Corrosion and Corrosion Cracking in Steels in Aqueous Solutions [in Russian], Atomizdat, Moscow (1970).
2. H. Suss, Corrosion,18, No. 1, 17 (1962);17 No. 2, 63 (1961).
3. X. Tozano, J. Jpn. Inst. Met.,24, No. 12, 786 (1960).
4. W. Ruttmann and T. Gunther, Werkst. Korros., No. 2, 104 (1965).
5. Yu. M. Khirnyi and A. P. Solodovnikov, Dokl. Akad. Nauk SSSR,214, No. 1, 82 (1974).