First principle study of the magnetism of Sr2CoMoO6-δ (δ = 0, 1/2) double perovskites C. Etz and D. Stoeffler Eur. Phys. J. B, 54 4 (2006) 429-434 Published online: 17 January 2007 DOI: 10.1140/epjb/e2007-00017-7