1. Baumgartner, R., Eichholz, S., Flesca, S., Gottlob, G., Herzog, M.: Semantic Markup of News Items with Lixto. In: Annotation for the Semantic Web. Frontiers in Artificial Intelligence and Application, vol. 96. IOSPress, Amsterdam (2003)
2. Baumgartner, R., Flesca, S., Gottlob, G.: Visual web information extraction with lixto. In: 27th I.C. on Very Large Data Bases (VLDB 2001), pp. 119–128. Morgan Kaufmann, San Francisco (2001)
3. Lecture Notes in Computer Science;R. Baumgartner,2005
4. W3C Consortium. OWL-S: Semantic Markup for Web Services (2004), at:
http://www.w3.org/Submission/OWL-S/
5. IFIP Conference Proceedings;M. Dell’Erba,2002