Conference paper (2011) - J.H. van Dalen (author), J. Jonker (author), KJ Bakker (author), F Jonker (author), Johan Bosch (author), Johannes G. Bosch (author), J.W. Bosch (author), J. G. Bosch (author), Johan G. Bosch (author)

Report (2002) - A.F. van Tol (author), A Jonker (author), KJ Bakker (author), A Baldee (author), HRE Dekker (author), N Goedhart (author), A.M. Gresnigt (author)