Structural, energetic and magnetic properties of small Tin (n = 2–13) clusters: a density functional studyJ. Medina, R. de Coss, A. Tapia and G. CantoEur. Phys. J. B, 76 3 (2010) 427-433DOI: https://doi.org/10.1140/epjb/e2010-00214-3