MAGNETIC ORDER AND ANISOTROPY IN FERRIMAGNETIC CHAINS OF Mn(II) IONS AND NITRONYL-NITROXIDE RADICALS A. Ganeschi, D. Gatteschi, J. P. Renard, P. Rey et R. SessoliJ. Phys. Colloques, 49 C8 (1988) C8-859-C8-860DOI: https://doi.org/10.1051/jphyscol:19888388