MAGNETIC PROPERTIES OF BaFe4Mn2O11 R-TYPE HEXAGONAL FERRITE X. Obradors, A. Isalgué, A. Collomb, M. Pernet, J. Tejada et J.C. Joubert J. Phys. Colloques, 46 C6 (1985) C6-339-C6-343 DOI: 10.1051/jphyscol:1985662