@article{AlluevaTorres:48629,
      author        = "Allueva Torres, Pedro [coord.] and Nasarre Sarmiento,
                       José María [coord.]",
      title         = "{Retos del montañismo en el siglo XXI = Challenges of
                       mountaneering in the XXI century / Congreso Internacional
                       de montañismo CIMA 2015 = International Congress on
                       Mountaneering CIMA 2015 : Zaragoza (España), 26-28 de
                       Marzo de 2015}",
      year          = "2015",
}