D. E. Alexander, “‘Structural grain’ in landscapes and its relationship to large-scale slope deformations”, Geog. Fis. Dinam. Quat., vol. 20, no. 1, pp. 5–12, Jun. 1997, Accessed: Oct. 23, 2026. [Online]. Available: https://gfdq.glaciologia.it/index.php/GFDQ/article/view/558