Wieczorek GF. Directions of the U.S. Geological Survey Landslide Hazards Reduction Program. Geog. Fis. Dinam. Quat. [Internet]. 1993 Jun. 30 [cited 2026 May 24];16(1):21-5. Available from: https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/709