@book{ abelson-et-al:scheme,
  author = "Harold Abelson and Gerald~Jay Sussman and Julie Sussman",
  title = "Structure and Interpretation of Computer Programs",
  publisher = "MIT Press",
  address = "Cambridge, Massachusetts",
  year = "1985"
}

@inproceedings{ bgf:Lixto,
  author = "Robert Baumgartner and Georg Gottlob and Sergio Flesca",
  title = "Visual Information Extraction with {Lixto}",
  booktitle = "Proceedings of the 27th International Conference on Very Large Databases",
  pages = "119--128",
  publisher = "Morgan Kaufmann",
  address = "Rome, Italy",
  month = "September",
  year = "2001"
}

@article{ brachman-schmolze:kl-one,
  author = "Ronald~J. Brachman and James~G. Schmolze",
  title = "An overview of the {KL-ONE} knowledge representation system",
  journal = "Cognitive Science",
  volume = "9",
  number = "2",
  pages = "171--216",
  month = "April--June",
  year = "1985"
}

@article{ gottlob:nonmon,
  author = "Georg Gottlob",
  title = "Complexity results for nonmonotonic logics",
  journal = "Journal of Logic and Computation",
  volume = "2",
  number = "3",
  pages = "397--425",
  month = "June",
  year = "1992"
}

@article{ gls:hypertrees,
  author = "Georg Gottlob and Nicola Leone and Francesco Scarcello",
  title = "Hypertree Decompositions and Tractable Queries",
  journal = "Journal of Computer and System Sciences",
  volume = "64",
  number = "3",
  pages = "579--627",
  month = "May",
  year = "2002"
}

@article{ levesque:functional-foundations,
  author = "Hector~J. Levesque",
  title = "Foundations of a functional approach to knowledge representation",
  journal = "Artificial Intelligence",
  volume = "23",
  number = "2",
  pages = "155--212",
  month = "July",
  year = "1984"
}

@inproceedings{ levesque:belief,
  author = "Hector~J. Levesque",
  title = "A logic of implicit and explicit belief",
  booktitle = "Proceedings of the Fourth National Conference on Artificial Intelligence",
  publisher = "American Association for Artificial Intelligence",
  pages = "198--202",
  address = "Austin, Texas",
  month = "August",
  year = "1984"
}

@article{ nebel:jair-2000,
  author = "Bernhard Nebel",
  title = "On the compilability and expressive power of propositional planning formalisms",
  journal = "Journal of Artificial Intelligence Research",
  volume = "12",
  pages = "271--315",
  year = "2000"
}

 @misc{proceedings,
  author = {{IJCAI Proceedings}},
  title = {{IJCAI} Camera Ready Submission},
  howpublished = {\url{https://proceedings.ijcai.org/info}},
}
