Magnetic properties of the ordered and disordered double perovskite Sr2Fe1+xMo1−xO6 (−1 ≤ x ≤ 1/3)J.R. Suárez, F. Estrada, O. Navarro and M. AvignonEur. Phys. J. B, 84 1 (2011) 53-58DOI: https://doi.org/10.1140/epjb/e2011-20647-2