M. del P. García Rodríguez and A. Sánchez Pérez de Évora, “Study of degraded areas throughimages obtained froma UAV (drone) and the ESA Sentinel satellite”, An. geogr. Univ. Complut., vol. 40, no. 1, pp. 55–71, Jun. 2020, doi: 10.5209/aguc.69332.