Universidad de Zaragoza Repository

@article{LalienaBielsa:42117,
      author        = "Laliena Bielsa, Antonio Ramon and Javierre Perez, Etelvina
                       and Rodriguez Rodriguez, Marcos and Ortigas Galindo, Jorge
                       and Sánchez Rúa, María Teresa",
      title         = "{}",
      year          = "2012",
}