1. Sustainable land use interpretation of remote sensing data of the Modder, Seekoei and upper Orange River catchment areas, Eastern Free State, South Africa;Barker,2007
2. A physically based variable contributing area model of basin hydrology;Beven;Hydrological Sciences Bulletin,1979
3. The Nature of Mediterranean Europe, an Ecological History;Grove,2001
4. Gully erosion and land use during the last 60 years in a small rangeland catchment in Southwest Spain;Gutiérrez,2008
5. Interrelationship between land abandonment and land degradation: a case from the Ecuadorian Andes;Harden;Mountain Research and Development,1996