Universidad de Zaragoza Repository

@article{MartínezOvejas:43743,
      author        = "Martínez Ovejas, Pedro Jesús and Armero Mayayo, María
                       Carmen and Gil Ruiz, María Milagros and Roy Todo, Luis
                       Javier and Antolín Coma, Juan Antonio",
      title         = "{}",
      year          = "2011",
}