Universidad de Zaragoza Repository

@article{UsozOtal:41371,
      author        = "Usoz Otal, Javier and Lázaro Alquézar, María Angelina
                       and Díez-Ticio Duce, María Amor and Astigarraga Goenaga,
                       Jesús",
      title         = "{}",
      year          = "2012",
}