@InProceedings{hoffmann:koehler:ijcai-99,
  author = 	 {J{\"o}rg Hoffmann and Jana Koehler},
  title = 	 {A new Method to Query and Index Sets},
  crossref =	 {ijcai99},
  pages =	 {462-467},
  URL =          {ftp://ftp.informatik.uni-freiburg.de/papers/ki/hoffmann-koehler-ijcai99.ps.gz}
}

@Proceedings{ijcai99,
  Key = "IJCAI-96",
  title = 	"Proceedings of the 16th International Joint Conference on
                   Artificial Intelligence (IJCAI-99)",
  booktitle = 	"Proceedings of the 16th International Joint Conference on
                   Artificial Intelligence (IJCAI-99)",
  year = 	1999,
  OPTeditor = 	"M. Pollack",
  publisher =	 kauf,
  address = 	"Stockholm, Sweden",
  month = 	Aug,
  ISBN =        "1-55860-480-4"
}