CALORIMETRIC EVIDENCE OF STRUCTURAL AND FERROMAGNETIC TRANSITIONS I N GdxEr1-xRh4B4 J. C. Ho, C. Y. Huang et J. L. SmithJ. Phys. Colloques, 39 C6 (1978) C6-381-C6-382DOI: https://doi.org/10.1051/jphyscol:19786170