348
A.M.J. Meijerink and C.M.M. Mannaerts
W . Tauer & G.Humborg, 1992: Runoff Irrigation in the Sahel zone: Remote Sensing and Geographic
Information Systems for Determining Potential Sites. 192 p. Josef Margraf Verlag, Weikersheim,
Germany
D.L. Umali, 1993: Irrigation Induced Salinity: a growing Problem for Development and the Environment. Technical Paper, World Bank, Washington D.O.
H.Th. Verstappen, 1977: Remote Sensing in Geomorphology. Elsevier Scientific Pub!., Amsterdam,
the Netherlands
J. Vbra & A. Zaporozec (eds ).,1994: Guidebook on Mapping Groundwater Vulnerability. International
Association of Hydrogeologists, IAHG Contributions to Hydrogeology, 16., 131 p., H.Heise Verlag, Hannover
F.Wolbring and G.A.Schultz, 1996: A communication support system for water authorities dealing
with reservoir management, IAHS Pub!. No. 231, 1996
A.M.J. Meijerink and C.M.M. Mannaerts
W . Tauer & G.Humborg, 1992: Runoff Irrigation in the Sahel zone: Remote Sensing and Geographic
Information Systems for Determining Potential Sites. 192 p. Josef Margraf Verlag, Weikersheim,
Germany
D.L. Umali, 1993: Irrigation Induced Salinity: a growing Problem for Development and the Environment. Technical Paper, World Bank, Washington D.O.
H.Th. Verstappen, 1977: Remote Sensing in Geomorphology. Elsevier Scientific Pub!., Amsterdam,
the Netherlands
J. Vbra & A. Zaporozec (eds ).,1994: Guidebook on Mapping Groundwater Vulnerability. International
Association of Hydrogeologists, IAHG Contributions to Hydrogeology, 16., 131 p., H.Heise Verlag, Hannover
F.Wolbring and G.A.Schultz, 1996: A communication support system for water authorities dealing
with reservoir management, IAHS Pub!. No. 231, 1996