IMPROVEMENT OF HEXAFERRITES CRYSTAL GROWTH : REPRODUCTIBILITY AND CHARACTERIZATION J. M. Desvignes, H. Le Gall, M. Labeyrie, J. C. Mage et T. M. RobinsonJ. Phys. Colloques, 46 C6 (1985) C6-331-C6-334DOI: https://doi.org/10.1051/jphyscol:1985660