Authors: Vieth, GR Gunatilake, H Cox, LJ

Citation: Gr. Vieth et al., Economics of soil conservation: The Upper Mahaweli Watershed of Sir Lanka, J AGR ECON, 52(1), 2001, pp. 139-152

Authors: Gunatilake, HM Vieth, GR

Citation: Hm. Gunatilake et Gr. Vieth, Estimation of on-site cost of soil erosion: A comparison of replacement and productivity change methods, J SOIL WAT, 55(2), 2000, pp. 197-204