BEHAVIOR OF "ONE-MODE" AND "TWO-MODE" MIXED I I I -V ALLOYS UNDER PRESSURE P. Galtier, J. Chevallier, M. Zigone et G. Martinez J. Phys. Colloques, 45 C8 (1984) C8-61-C8-63 DOI: 10.1051/jphyscol:1984812