Workshop hydrological models / R.H. Boekelman, T.H.M. RientjesBehaviour of groundwater of the polder Groot-Mijdrecht / S.N. Singh ... [et al.]Groundwater modelling : short course / R.H. Boekelman, T.H.M. RientjesGeostatistics and hydrology / M.J. van DijkGeostatistics and hydrology / M.J. van Dijk & T.H.M. RientjesGeostatistics and hydrology / M.J. van Dijk