Sven Hartmann Gabriele Kern-Isberner Foundations of Information and Knowledge Systems, 5th International Symposium, FoIKS 2008, Pisa, Italy, February 11-15, 2008, Proceedings FoIKS Lecture Notes in Computer Science 4932 Springer 2008 978-3-540-77683-3 db/conf/foiks/foiks2008.html