EXPERIMENTAL AND THEORETICAL PHASE DIAGRAMS OF SOME PSEUDO ONE-DIMENSIONAL HEISENBERG ANTIFERROMAGNETS F. Boersma, J. P.A.M. Hijmans, W. J.M. de Jonge et J. M.A. RoosJ. Phys. Colloques, 39 C6 (1978) C6-731-C6-732DOI: https://doi.org/10.1051/jphyscol:19786325