Conference paper (2012) - Q. Zhao (author), I.T. Young (author), K Jalink (author), S de Jong (author), B van Geest (author), KWJ Stoop (author), B Schelen (author), R.N. Schouten (author), R Oever (author), R Leenen (author), HC van Kuijk (author), I Peters (author), FJ Polderdijk (author), JT Bosiers (author)

Conference paper (1999) - LK Geest (author), FR Boddeke (author), PW van Dijk (author), AF Kamp (author), CJR van der Oord (author), KWJ Stoop (author)