Magnetization Anomalies in some Ternary Spinel Single Crystals V. Tsurkan, S. Radautsan, M. Baran, R. Szymczak et H. Szymczak J. Phys. IV France, 07 C1 (1997) C1-271-C1-272 DOI: 10.1051/jp4:19971106