Conference paper (2012) - C. den Heijer (author), C. Den Heijer (author), Kees den Heijer (author), Kees Den Heijer (author), Cornelis den Heijer (author), Cornelis Den Heijer (author), DJTA Knipping (author), NG Plant (author), J. S.M. van Thiel de Vries (author), J. S.M. van Thiel De Vries (author), J. S.M. Van Thiel De Vries (author), Jaap van Thiel de Vries (author), Jaap van Thiel De Vries (author), Jaap Van Thiel De Vries (author), J.S.M. van Thiel de Vries (author), J.S.M. van Thiel De Vries (author), J.S.M. Van Thiel De Vries (author), Fedor Baart (author), F. Baart (author), P. H.A.J.M. van Gelder (author), P. H.A.J.M. Van Gelder (author), P. H.A.J.M. Gelder (author), Pieter Van van Gelder (author), Pieter Van Van Gelder (author), Pieter Van Gelder (author), PHAJM van Gelder (author), PHAJM Van Gelder (author), PHAJM Gelder (author), Pieter van Gelder (author), Pieter Van Gelder (author), Pieter Gelder (author), Pieter van van Gelder (author), Pieter van Van Gelder (author), Pieter van Gelder (author), P. H A J M van Gelder (author), P. H A J M Van Gelder (author), P. H A J M Gelder (author), Pieter H.A.J.M. van Gelder (author), Pieter H.A.J.M. Van Gelder (author), Pieter H.A.J.M. Gelder (author), P.H.A.J.M. van Gelder (author), P.H.A.J.M. Van Gelder (author), P.H.A.J.M. Gelder (author)