1. W.W. Gerberich: inHydrogen in Metals, I.M. Bernstein and A.W. Thompson, eds., ASM, Metals Park, OH, 1974, pp. 115–47.
2. W.W. Gerberich and Y.T. Chen:Metall. Trans. A, 1975, vol. 6A, pp. 271–78.
3. E.A. Steigerwald and W.D. Benjamin:Metall. Trans. A, 1971, vol. 2A, pp. 606–08.
4. Zhen Wenlong:J. Chinese Soc. Corrosion Protection, 1984, vol. 4, pp. 287–94.
5. Zhen Wenlong, Zhu Guopei, Ouyang Huaijin, and Li Ge:Acta Metall. Sinica, 1986, vol. 22, pp. A275–82.