SECOND ORDER ELASTIC CONSTANTS OF Pd, Pd H0.7 AND Pd D0.7 BETWEEN 1.7 AND 50 K D.B. POKER, R.B. SCHWARZ et A.V. GRANATO J. Phys. Colloques, 46 C10 (1985) C10-123-C10-126 DOI: 10.1051/jphyscol:19851028