@proceedings{conf/kgc/1997, title = "{Computational Logic and Proof Theory, 5th Kurt G{\"o}del Colloquium, KGC'97, Vienna, Austria, August 25-29, 1997, Proceedings}", year = "1997", booktitle = "Kurt G{\"o}del Colloquium", editor = "Georg Gottlob and Alexander Leitsch and Daniele Mundici", isbn = "3-540-63385-5", publisher = "Springer", series = "Lecture Notes in Computer Science", volume = "1289", }