@article{Ara:168240,
      author        = "Ara, I. and Garciá-Monforte, M.A. and González, R. and
                       Falvello, L.R. and Tomás, M.",
      title         = "{A route to small clusters: A twisted half-hexagram-shaped
                       M4(OH)4 cluster and its capacity for hosting closed-shell
                       metals}",
      year          = "2017",
}