IMPURITY EFFECTS ON THE RECOVERY OF COPPER STUDIED BY ULTRASONIC ATTENUATION MEASUREMENTS UNDER CYCLIC BIAS STRESS C. BECKER, D. LENZ et K. LÜCKE J. Phys. Colloques, 48 C8 (1987) C8-137-C8-142 DOI: 10.1051/jphyscol:1987817