Toon referentieBooltink, H.W.G., P. Droogers, J. Verhagen. 1997. The modified WAVE model. In M.C. Plentinger and F.W.T. Penning de Vries (Eds.) Rotation models for ecological farming. Quantitative approaches in systems analysis, No. 10. AB-DLO, PE, Wageningen, pp. 93-101X Download PDF