Book chapter (1998) - AM Mulders (author), P.C.M. Gubbens (author), JJM Franse (author), CT Kaiser (author), A Amato (author), R Feyerherm (author), FN Gygax (author), A Schenck (author), P Dalmas De Reotier (author), A Yaouanc (author), F Kayzel (author)