@inproceedings{conf/nmr/Gottlob02,
  title = "Visual Data Extraction Through Visual Logic Programming",
  author = "Georg Gottlob",
  year = "2002",
  booktitle = "{9th International Workshop on Non-Monotonic Reasoning (NMR 2002), April 19-21, Toulouse, France, Proceedings}",
  editor = "Salem Benferhat and Enrico Giunchiglia",
  pages = "4",
}