Gomez Lende, Manuel, Fernando Berenguer, and Enrique Serrano. 2014. “Morphology, Ice Types and Thermal Regime in a High Mountain Ice Cave. First Studies Applying Terrestrial Laser Scanner in the Peña Castil Ice Cave (Picos De Europa, Northern Spain)”. Geografia Fisica E Dinamica Quaternaria 37 (2): 141-50. https://doi.org/10.4461/GFDQ.2014.37.13.