NEW DOUBLE MAGNON MODES IN PLANAR ANTIFERROMAGNETIC CHAINS IN A FIELD J. P. Boucher, M. Remoissenet, R. Pynn et L. P. RegnaultJ. Phys. Colloques, 49 C8 (1988) C8-1381-C8-1382DOI: https://doi.org/10.1051/jphyscol:19888633
