He was a visiting teacher at Stockholm University and the Catholic University of Brussels .
He was previously a Professor at Ghent University ( 1997 - 1999 ) , University of Antwerp ( U.I.A. ) ( 1999 - 2000 ) , and Utrecht University ( 2000 - 2009 ) .
Professor was a visiting Professor at Stockholm University and the Catholic University of Brussels .
He was previously a Professor at Ghent University ( 1997 - 1999 ) , University of Antwerp ( U.I.A. ) ( 1999 - 2000 ) , and Utrecht University ( 2000 - 2009 ) .