Electronic structure and magnetism of EuX (X = O, S, Se and Te): A first-principles investigationS. Q. Shi, C. Y. Ouyang, Q. Fang, J. Q. Shen, W. H. Tang and C. R. LiEPL, 83 6 (2008) 69001DOI: https://doi.org/10.1209/0295-5075/83/69001