Regües, D., P. Llorens, G. Pardini, R. Pini, y F. Gallart. 1993. «Physical Weathering and Regolith Behaviour in a High Erosion Rate Badland Area at the Pyrenees: Research Design and First Results». Pirineos 141-142 (diciembre):63-84. https://doi.org/10.3989/pirineos.1993.v141-142.164.