Tekst (author, report nr.) PERPEST version 1.0, manual and technical description; a model that Predicts the Ecological Risks of PESTicides in freshwater ecosystems. E.H. van Nes, P.J. van den Brink. Alterra-rapport 787, Alterra, Wageningen, 2003 Year 2003 Document PerpestManual.pdf Manual On Highlight on home Off Model PERPEST