Book chapter (1999) - S Zavrtanik (author), CWE van Eijk (author), C.W.E. van Eijk (author), RW Hollander (author), RW Hollander (author), Rob Kreuger (author), R. Kreuger (author), R Kreuger (author), P Balk (author), ? Cp-Lear Collaboration (author)