MAGNETOCALORIC EFFECT AND CRITICAL PHENOMENA OF IRON, COBALT AND NICKEL NEAR THE CURIE TEMPERATURE W. ROCKER, R. KOHLHAAS et H. W. SCHÖPGENSJ. Phys. Colloques, 32 C1 (1971) C1-652-C1-653DOI: https://doi.org/10.1051/jphyscol:19711225