Alatorre, L. C. and Beguería, S. (2013) “Idenitifying active erosion areas and areas at risk by remote sensing : an example in a badlands landscape on marls in teh Central Spanish Pyrenees”, Cuadernos de Investigación Geográfica. Logroño, SPA, 35(2), pp. 171–194. doi: 10.18172/cig.1217.