R.J.Oosterbaan, 1994, Frequency and Regression Analysis. In: H.P.Ritzema (ed.), Drainage Principles and Applications, Publ. 16, pp. 175-224, International Institute for Land Reclamation and Improvement (ILRI), Wageningen, The Netherlands. ISBN90-70754-33-9 . Download as PDF : [1]
R.J.Oosterbaan, 2002. Drainage research in farmers' fields: analysis of data. Part of project “Liquid Gold” of the
International Institute for Land Reclamation and Improvement (ILRI), Wageningen, The Netherlands. Download as PDF : [2]. The figure was made with the SegReg program, which can be downloaded freely from [3]
