@phdthesis{BéjarHernández:3383,
      author       = "Muro-Medrano, Pedro R. and Nogueras Iso, Francisco Javier
                      and Béjar Hernández, Rubén",
      title        = "Contributions to the modelling of spatial data
                      infrastructures and their portrayal services",
      school       = "Zaragoza, Universidad de Zaragoza",
      address      = "Zaragoza",
      month        = "Ago",
      year         = "2009",
      note         = "Presentado:  02 04 2009",
}