1. Soil classification for England and Wales;Avery;Soil Survey of England and Wales Monogr.,1980
2. A physically-based, variable contributing area model of basin hydrology;Beven;Hydrol. Sci. Bull.,1979
3. Field tunnel erosion: its characteristics and amelioration;Boucher,1990
4. Development of topographic indices for use in semi-distributed hillslope runoff models;Burt;Z. Geomorphol. Suppl.,1986
5. Hillslope Form and Process;Carson,1972