1. The erodibility of two soils from Kenya;Barber;J. Soil Sci.,1979
2. Water infiltration and redistribution in a silt loam subsoil with vertical worm channels;Bouma;Soil Sci. Soc. Am. J.,1982
3. Soil faunal activity in relation to the sustainability of agricultural systems in the humid tropics;Brussaard,1993
4. Bovengrondse afstrooming en erosie op Java;Coster;Tectona,1938
5. FAO-Unesco Soil Map of the World, revised legend;FAO,1988