Positron Dopplerbroadening Measurements in Cu-Al-Ni Based Shape Memory Alloys D. Segers, I. Hurtado, L. Dorikens-Vanpraet et J. van Humbeeck J. Phys. IV France, 05 C1 (1995) C1-163-C1-169 DOI: 10.1051/jp4:1995119