1. 3) J. F. Bates: Corrosion, 29, 38 (1973).
2. 8) T. Suzuki & Y. Kitamura: Corrosion, 28, 1 (1972).
3. 9) J. L. Crolet & J. M. Defranoux: Corr. Sci., 13, 575 (1973).
4. 11) B. F. Brown: Corrosion, 26, 249 (1970).
5. 12) T. Suzuki: Passivity and Its Breakdown on Iron and Iron-base Alloys, p. 126 (1975).