MAGNETIC FIELD INDUCED FIRST-ORDER TRANSITIONS IN DYSPROSIUM ORTHOFERRITE V. V. Eremenko, S. L. Gnatchenko, N. F. Kharchenko, P. P. Lebedev, K. Piotrowski, H. Szymczak et R. Szymczak J. Phys. Colloques, 49 C8 (1988) C8-919-C8-920 DOI: 10.1051/jphyscol:19888418