1. Modeling groundwater flow over sloping lands;Chapman;Water Resour. Res.,1980
2. A rigorous proof of the Dupuit formula for unconfined seepage with a seepage face;Charny;Dokl. Akad. Nauk SSSR,1951
3. The water table, equipotentials and streamlines in drained land III;Childs;Soil Sci.,1945
4. Drainage of groundwater resting on a sloping bed;Childs;Water Resour. Res.,1971
5. Le potentiel complexe d’un courant à surface libre dans une couche relativement mince pour k=f(z);Guirinsky;C.R. Dokl. Acad. Sci. URSS,1946