Conference paper (1999) - E Schroten (author), M Zeman (author), M. Zeman (author), Miro Zeman (author), Miroslav Zeman (author), Rene van Swaaij (author), R.A.C.M.M. van Swaaij (author), René van Swaaij (author), RACMM van Swaaij (author), René A.C.M.M. van Swaaij (author), LLA Vosteen (author), JW Metselaar (author)