@article{Castro-Rodrigo:131135,
      author        = "Castro-Rodrigo, R. and Esteruelas, M.A. and Fuertes, S.
                       and Lopez, A.M. and Lopez, F. and Mascarenas, J.L. and
                       Mozo, S. and Onate, E. and Saya, L. and Villarino, L.",
      title         = "{Formation of Osmium- and Ruthenium-Cyclobutylidene
                       Complexes by Ring Expansion of Alkylidenecyclopropanes}",
      year          = "2009",
}