Technical reports in computer science / University of Limburg, Department of Computer ScienceBenelog 1999 : proceedings of the eleventh Benelux workshop on logic programming / Sandro Etalle (ed.)Covers of hypercubes with symmetric snakes / A.J. van Zanten and A. LukitoIterative solutions for the tower of Hanoi problem with four pegs / A.J. van ZantenArtificial evolution of box-pushing behaviour / Ida G. Sprinkhuizen-KuyperGames solved : now and in the future / H. Jaap van den Herik, Jos W.H.M. Uiterwijk and Jack van RijswijckGeneralising boundary sets / E.N. Smirnov, H. Jaap van den Herik, and I.G. Sprinkhuizen-Kuyper