1. El glaciar rocoso activo de los Gemelos en el Macizo del Posets (Pirineo Aragonés);Agudo;Cuaternario y Geomorfología,1989
2. Anciens glaciers dans l'est des Pyrénées centrales;Angely;Revue Geographique des Pyrénées et Sud-Ouest,1967
3. Thermal seasonality on the high mountain belts of the Pyrenees;Barrio;Mountain Research and Development,1990
4. Active rock glaciers as indicators for discontinuous alpine permafrost. An example from the Swiss Alps;Barsch,1978
5. Rock Glaciers. Indicators for the Present and Former Geoecology in High Mountain Environment;Barsch,1996