Haigh, M., & Gentcheva-Kostadinova, S. (2024). Geomorphological Impact of Erosion Control Measures on a Steep Coal-Spoil Embankment, Pernik, Bulgaria. Geografia Fisica E Dinamica Quaternaria, 30(2), 179-183. https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/324