@inproceedings{conf/esws/BaumgartnerFG07,
  author = "Robert Baumgartner and Oliver Fr{\"o}lich and Georg Gottlob",
  booktitle = "{The Semantic Web: Research and Applications, 4th European Semantic Web Conference, ESWC 2007, Innsbruck, Austria, June 3-7, 2007, Proceedings}",
  doi = "10.1007/978-3-540-72667-8_3",
  editor = "Enrico Franconi and Michael Kifer and Wolfgang May",
  isbn = "978-3-540-72666-1",
  pages = "16-26",
  publisher = "Springer",
  series = "Lecture Notes in Computer Science",
  title = "The {Lixto} Systems Applications in Business Intelligence and Semantic Web",
  volume = "4519",
  year = "2007",
}