Mapping urban gullies in the Democratic Republic of the Congo - Guy Ilombe Mawe; Eric Lutete Landu; Elise Dujardin; Fils Makanzu Imwangana; Charles Bielders; Aurélia Hubert; Caroline Michellier; Charles Nzolang; Jean Poesen; Olivier Dewitte; Matthias Vanmaercke (Nature, 2025)