1. 1) R. W. Staehle: Proc. 1st Int. Conf. Environment-Induced Cracking in Metals, ed. R. P. Gangloff and M. B. Ives, NACE, (1988), 561.
2. 2) 村上陽太郎:軽金属,31(1981),748.
3. 3) 馬場義雄:軽金属,24(1974),277.
4. 4) 小島 陽,高橋恒夫:軽金属,26(1976),473.
5. 5) 大西忠一:軽金属,34(1984),132.