1. Hydrogen Degradation of Ferrous Alloys, R.A. Oriani, J.P. Hirth, and Michael Smialowski, eds., Noyes Publications, Park Ridge, NJ, 1985.
2. Hydrogen and Materials, Proc. 4th Int. Conf., Pierre Azou and Nanping Chen, eds., Beijing, China, May 9-13, 1988, pp. 1-15.
3. J.P. Hirth and H.H. Johnson:Corrosion, 1976, vol. 32, pp. 3–25.
4. J.P. Hirth:Metall. Trans. A, 1980, vol. 11 A, pp. 861–90.
5. H.H. Johnson:Metall. Trans. A, 1988, vol. 19A, pp. 2371–87.