Journal article (2013) - PHJ Kouwer (author) , M Koepf (author) , S.J. Picken (author) , RJM Nolte (author) , E. Mendes (author) , AE Rowan (author) , V.A.A. le Sage (author) , M Jaspers (author) , AM van Buul (author) , ZH Eksteen-Akeroyd (author) , T Woltinge (author) , E Schwartz (author) , HJ Kitto (author) , R Hoogenboom (author)

Journal article (2007) - PHJ Kouwer (author) , S.J. Picken (author) , GH Mehl (author)