Il Yeal Song Johann Eder Tho Manh Nguyen Data Warehousing and Knowledge Discovery, 9th International Conference, DaWaK 2007, Regensburg, Germany, September 3-7, 2007, Proceedings DaWaK Lecture Notes in Computer Science 4654 Springer 2007 978-3-540-74552-5 db/conf/dawak/dawak2007.html