de Pablo, M.A., et al. “Frozen Ground and Snow Cover Monitoring in Livingston and Deception Islands, Antarctica: Preliminary Results of the 2015-2019 PERMASNOW Project”. Cuadernos De Investigación Geográfica, vol. 46, no. 1, June 2020, pp. 187-22, doi:10.18172/cig.4381.