The energy bands of quantized spin waves and the uniaxial anisotropy in a biferromagnetic system X. J. Hou, G. H. Yun, Y. H. Bai, N. Bai and W. P. Zhou Eur. Phys. J. B, 78 1 (2010) 111-117 Published online: 28 October 2010 DOI: 10.1140/epjb/e2010-10072-6