Modelling soil erosion, sediment transport and closely related hydrological processes : proceedings of an international symposium held at Vienna from 13 to 17 July 1998 ... organized by the International Commission on Continental Erosion of the International Association of Hydrological Sciences ... / edited by W. Summer, E. Klaghofer, W. Zhang. - Summer, W. (Wolfgang); Klaghofer, E. (Eduard); Zhang, W. (Wei) (IAHS publication ;, 1998)