J. Weissmüller Journal of Materials Research 9 (1994), 4-7.
J. Weissmüller Materials Science and Engineering A179-180 (1994), 102 - 107.
H. Fukutomi, K. Aoki, A. Nomoto, S. Ikeda, C. Hartig Materials Transactions Jim (1994) 35 p.794-799.