HEAT RELAXATION PHENOMENA AT VERY LOW TEMPERATURE AND SPECIFIC HEAT OF THE AMORPHOUS SUPERCONDUCTOR La0.78Zn0.22 A. Ravex, J. C. Lasjaunias et D. ThoulouzeJ. Phys. Colloques, 41 C8 (1980) C8-749-C8-750DOI: https://doi.org/10.1051/jphyscol:19808186