1. Simulation model of physical and chemical processes in acid sulphate soils to evaluate water management strategies;AARD/LAWOO,1993
2. Water management and soil fertility;AARD/LAWOO,1993
3. Guidelines for soil surveys in acid sulphate soils in the humid tropics; the main problems considered;Andriesse,1993
4. Diffusion of gasses in soil and diffusion coefficients for Dutch arable soils;Bakker,1987
5. Problem soils: their reclamation and management;Beek,1980