1 Williams, P.; Evans, C. A., Jr., Anal. Chem., 48(1976) , 964.
[2]
2 De Oliverira, C. P.; Aucouturier, M.; Lacombe, P., Corrosion, 36(1980) , 53.
[3]
3 Ohma, H.; Tiwari, G. P.; Lijima, Y.; Hirano, K., Proceedings JIMIS-2, Hydrogen in Metals, Minakami, Gunma Perf., Japan 1979, Published by JIM, Aoba Aramaki, Japan, 1980, p. 229.
[4]
4 Taguchi, I., Proceedings JIMIS-2, Hydragen in Metals, Minakami, Gunma Perf., Japan 1979, Published by JIM, Aoba Aramaki, Japan, 1980 p. 225.