Tekst (author, report nr.) Boesten, J.J.T.I., and L.J.T. van der Pas, 1999. Wageningen, DLO Winand Staring Centre for Integrated Land, Soil and Water Research, SC-DLO report 122. Year 1999 URL naar document http://edepot.wur.nl/363264 Manual On Highlight on home Off Model PEARL