FIELD TRANSITION FROM 3D TO 2D ANTIFERROMAGNETIC CORRELATIONS IN NON-STOICHIOMETRIC La2CuO4-δ B. Barbara, J. Beille et H. DupendantJ. Phys. Colloques, 49 C8 (1988) C8-2135-C8-2136DOI: https://doi.org/10.1051/jphyscol:19888955