Universidad de Zaragoza Repository

@article{BeltránGracia:45360,
      author        = "Beltrán Gracia, José Antonio and Sánchez Gimeno, Ana
                       Cristina and Negueruela Suberviola, Ángel Ignacio and
                       Roncales Rabinal, Pedro and Benito Velasco, Marta",
      title         = "{}",
      year          = "2010",
}