Sebastian Kornexl, Franz Pühretmair, Wolfram Wöß, Roland Wagner. Active Data Integration for Distribution of Up-to-date Tourism Media. In Gabriele Kotsis, Stéphane Bressan, Ismail Khalil Ibrahim, editors, iiWAS 2003 - The Fifth International Conference on Information Integrationand Web-based Applications Services, 15-17 September 2003, Jakarta, Indonesia. Volume 170 of books@ocg.at, Austrian Computer Society, 2003.