Long-term climate record inferred from early-middle Pleistocene amphibian and squamate reptile assemblages at the Gran Dolina Cave, Atapuerca, Spain - Blain, Hugues-Alexandre; Bailón, Salvador; Cuenca Bescós, Gloria; Arsuaga, Juan Luis; Bermúdez de Castro, José María; Carbonell, Eudald (2009)