ULTRASONIC ATTENUATION AND VELOCITY IN Cd0.55 Mn0.45Te+ P. MAHESWARANATHAN, R. J. SLADEK et U. DEBSKAJ. Phys. Colloques, 46 C10 (1985) C10-513-C10-516DOI: https://doi.org/10.1051/jphyscol:198510113