@article{AstierPeña:33594,
      author        = "Astier Peña, María Pilar and Delgado Marroquín, María
                       Teresa and Millaruelo Trillo, José Manuel and Sangrós
                       González, Francisco Javier and Martín Moreno, Fernando",
      title         = "{}",
      year          = "2014",
}