Universidad de Zaragoza Repository

@article{RuidíazPeña:43329,
      author        = "Ruidíaz Peña, Mercedes and Gascón Catalán, Ana María
                       and Oliván Usieto, María Teresa and Gros Sanagustín,
                       María Pilar and León Puy, Juan Francisco and Borao
                       Aguirre, Mª. Perla",
      title         = "{}",
      year          = "2011",
}