Preference numbers and funnel dimension Jan M. Aarts; H. Maaren — 1990 Commentationes Mathematicae Universitatis Carolinae
A new method to construct lower bounds for van der Waerden numbers. Herwig, P.R.; Heule, M.J.H.; van Lambalgen, P.M.; van Maaren, H. — 2007 The Electronic Journal of Combinatorics [electronic only]