@article{Lamelas:168669,
      author        = "Lamelas, M.T. and Marinoni, O. and Hoppe, A. and Riva, J.
                       de la",
      title         = "{Groundwater vulnerability map for the Ebro alluvial
                       aquifer between Jalón and Ginel tributaries (Spain)}",
      year          = "2007",
}