1. S. Yamamoto and S. Ohta, paper presented at the International Conference on the Strength of Metals and Alloys (Tokyo, 1967), in the press.
2. F. Garofalo, O. Richmond. W. F. Domis, and F. von Gem-mingen, "Joint International Conference on Creep ", Paper 1–31. 1965: London. (Inst. Mech. Eng.).