(H, T) PHASE DIAGRAM OF A UNIAXIAL DIPOLAR FERROMAGNET : LiHoF4 J. Pommier, P. Meyer, J. Ferré and I. Laursen J. Phys. Colloques, 49 C8 (1988) C8-1949-C8-1950 DOI: 10.1051/jphyscol:19888882