MAGNETIZATION AND HEAT CAPACITY STUDIES OF SINGLE CRYSTALS OF ErRh4B4 M. Rutgers, D. Dummer, P. Andersen, J. Cleveland, W. Weyhmann, E. Dan Dahlberg and D. Hinks J. Phys. Colloques, 49 C8 (1988) C8-407-C8-408 DOI: 10.1051/jphyscol:19888185