CRITICAL BEHAVIOUR OF THE UNIAXIAL DIPOLAR FERROMAGNET LiHoF4 P. Beauvillain, J. P. Renard, I. Laursen et P. J. WalkerJ. Phys. Colloques, 39 C6 (1978) C6-745-C6-746DOI: https://doi.org/10.1051/jphyscol:19786332