@article{PueyoAnchuela:169107,
      author        = "Pueyo Anchuela, Óscar and Casas Sainz, Antonio María and
                       Pocoví Juan, Andrés and Gil Garbi, Héctor and Calvín,
                       Pablo",
      title         = "{Characterization of the Karstic Process in an Urban
                       Environment Using GPR Surveys}",
      year          = "2014",
}