Guglielmin M, Tellini C. Rilevamento del permafrost con il metodo BTS (Bottom temperature of the Winter Snow Cover) nell’Alta Valtellina (Sondrio, Italia): Permafrost mapping with BTS methodology in the Upper Valtellina (Sondrio Province, Italy). Geog. Fis. Dinam. Quat. [Internet]. 1994 Jun. 30 [cited 2025 Mar. 13];17(1):47-54. Available from: https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/680