SUCCESSIVE REORIENTATIONS OF IRON MOMENTS IN YbFeO3, TbFeO3 AND ErFeO3 M. BELAKHOVSKY, J. CHAPPERT, T. ROUSOKOV et J. SIVARDIÈREJ. Phys. Colloques, 32 C1 (1971) C1-492-C1-493DOI: https://doi.org/10.1051/jphyscol:19711162