Antiferromagnetic resonance and high magnetic field properties of NaNiO2 E. Chappel, M. D. Núñez-Regueiro, F. Dupont, G. Chouteau, C. Darie and A. Sulpice Eur. Phys. J. B, 17 4 (2000) 609-614 Published online: 15 October 2000 DOI: 10.1007/s100510070098