INFLUENCE OF THE AGING PROCESS ON THE MAGNETIC SPECIFIC HEAT IN A CuMn SPIN GLASS P. Nordblad, L. Sandlund, P. Granberg, P. Svedlindh and L. Lundgren J. Phys. Colloques, 49 C8 (1988) C8-1041-C8-1042 DOI: 10.1051/jphyscol:19888475