1. A Nonlinear hydrologic system response model;Prasad,1967
2. Non-linear instantaneous unit hydrograph theory;Singh,1964
3. Variation in lag time for natural catchments;Askew,1970
4. A catchment storage model for run-off routing;Laurenson;J. Hydrol.,1964
5. Lag time of natural catchments;Askew,1968