1. Antolin, J. 1967. Saclay unpublished work (private communication)
2. Beeston, J. M. 1968. AIME annual meeting. 1968, New York. (private communication)
3. Conrad, H. June, 10th Metallurgy Colloquium. Saclay. pp.93 “Fragilite et effets de l'Irradiation”