Spagnolo, Matteo. “GIS Analysis of Unit Drainage Density and Its Influencing Factors in the South Fork Eel River (Northern California, U.S.A.)”. Geografia Fisica e Dinamica Quaternaria 25, no. 1 (June 26, 2024): 77–88. Accessed December 21, 2024. https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/427.