Conference paper (1999) - REI Schropp (author) , CHM van der Werf (author) , RJ Severens (author) , J Winkeler (author) , GJ Jongerden (author) , M Zeman (author) , MCM van de Sanden (author) , CIMA Spee (author) , E Middelman (author) , LV de Jonge-Meschaninova (author) , PMGM Peters (author) , AAM van der Zijden (author) , MM Besselink (author)