. . "Instituto International de Recuperación y Mejora de Tierras. Wageningen (Holanda)" . . "International Institute for Land Reclamation and Improvement." . . "Drenowanie modele matematyczne." . . "Drainage Modèles mathématiques." . . "Drainage - Modèles mathématiques." . . . "Computing drain spacings : a generalized method : with special reference to sensitivity analysis and geo-hydrological investigations" . "Computing drain spacings : A generalized method with special reference to sensitivity analysis and geo-hydrological investigations" . . . . . "Computing Drain Spacings - A Generalized Method with Special Reference to Sensitivity Analysis and Geo-Hydrological Investigations"@en . . . . . . . . . . . . . . . "Computing drain spacings : a generalized method with special reference to sensitivity analysis and geo-hydrological investigations" . . . "Wasser." . . "Abflussmenge." . . "Drenaje Modelos matemáticos." . .