Sensitivity of output covariance to non-second order properties in the case of unsaturated zone models / R. Wojcik, P.J.J.F. Torfs and S. IgnarNon-linear stochastic methods for discharge prediction / Rafał WójcikRainfall generator for the Rhine Basin : multi-site generation of weather variables for the entire drainage area / Rafał Wójcik, Jules J. Beersma, T. Adri BuishandRainfall generator for the Meuse Basin : simulation of 6-hourly rainfall and temperature for the Ourthe catchment / Rafał Wójcik, T. Adri BuishandPARDENS : an experimental program for Parzen density fitting / R. Wójcik and P.J.J.F. TorfsPARDENS : an experimental program for Parzen density fitting / R. Wójcik and P.J.J.F. Torfs