Journal publications

Full Hierarchical Dependencies in fixed and undetermined universes (with S. Hartmann, H. Koehler), Annals of Mathematics and Artificial Intelligence, Volume 50(1-2), pages 195-226. (pdf-file)

Conference Proceedings

Collection Types in Entity-Relationship Modeling (with S. Hartmann), in the Proceedings of the Twenty-Sixth International Conference on Conceptual Modeling - ER 2007, Auckland, New Zealand, Lecture Notes in Computer Science Volume 4801, pp. 307-322, ISBN: 9783540755623. (pdf-file)

Know your Limits: Enhanced XML Modeling with Cardinality Constraints (with T. Trinh), ER-Tutorial, In Proceedings of the tutorials, posters, panels and industrial contributions at the 26th International Conference on Conceptual Modeling - ER 2007, Conferences in Research and Practice in Information Technology, Volume 83, pp. 19-30, ISBN 978-1-920682-64-4. (pdf-file)

Numerical keys for XML (with S. Hartmann), in the Proceedings of the Fourteenth International Workshop on Logic, Language, Information and Computation - WoLLIC 2007, Rio de Janeiro, Brazil, Lecture Notes in Computer Science Volume 4576, pp. 203-217, ISBN: 9783540734437. (pdf-file)

Efficient Reasoning about XFDs with Pre-Image Semantics (with S. Hartmann, T. Trinh), in the Proceedings of the 12th International Conference on Database Systems for Advanced Applications - DASFAA 2007, Bangkok, Thailand, Lecture Notes in Computer Science Volume 4443, pp. 1070-1074, ISBN: 9783540717027. (pdf-file)

Unlocking keys for XML trees (with S. Hartmann), in the Proceedings of the Eleventh International Conference on Database Theory - ICDT 2007, Barcelona, Spain, Lecture Notes in Computer Science Volume 4353, pp. 104-118, ISBN: 9783540692690 . (pdf-file)

XML Query Optimisation: Specify your Selectivity (with S. Hartmann), in the Proceedings of the 2nd International Workshop on XML Data Management Tools and Techniques - DEXA Workshops 2007, Regensburg, Germany, IEEE Computer Society, pp. 30-34, ISBN: 0-7695-2932-1. (pdf-file)

English Sentence Structures and EER Modeling (with S. Hartmann), in the Proceedings of the Fourth Asia-Pacific Conference on Conceptual Modeling - APCCM 2007, Ballarat, Australia, Conferences in Research and Practice in Information Technology, Volume 67, pp. 27-35, 2007, ISBN: 1-920-68235-X. (pdf-file)

On Inferences of Full Hierarchical Dependencies (with S. Hartmann), in the Proceedings of the in Thirtieth Australasian Computer Science Conference - ACSC 2007, Ballarat, Australia, Conferences in Research and Practice in Information Technology, Volume 62, pp. 69-78, ISBN: 1-920-68243-0. (pdf-file)