John S. Fitzgerald Anne Elisabeth Haxthausen Hüsnü Yenigün Theoretical Aspects of Computing - ICTAC 2008, 5th International Colloquium, Istanbul, Turkey, September 1-3, 2008. Proceedings 5160 2008 978-3-540-85761-7 ICTAC Lecture Notes in Computer Science Springer db/conf/ictac/ictac2008.html