@article{Khutia:150375,
      author        = "Khutia, A. and Sanz Miguel, P. J. and Lippert, B.",
      title         = "{Isomerism with metallacalix[4]arenes of the
                       non-symmetrical pyrimidine nucleobase cytosine: How
                       connectivity and rotamer state determine the topology of
                       multinuclear derivatives}",
      year          = "2010",
}