Education
In 1982 he obtained his Doctor of Philosophy at the Centrum Wiskunde & Informatica, University of Amsterdam under Gijsbert de Leve and January Karel Lenstra with the thesis, entitled "Location Problems on Trees and in the Rectilinear Plane."
His Doctor of Philosophy students at the Erasmus University Rotterdam were Leo Kroon (graduated in 1990), Albert Wagelmans (1990), C. Stan van Hoesel (1991), Wim Pijls (1991), Peter Verbeek (1991), and A. Woerlee (1991). West. Hennen at the Wageningen University and Research Centre (graduated in 1995), and at the Maastricht University Alwin Oerlemans (graduated in 1992), Ron van der Wal (1995), Maarten Oosten (1996), Jons van de Klundert (1996), Robert van de Leensel (1999), Arie Koster (1999), and Alexander Grigoriev (2003).