@InProceedings{hoffmann:ki-11,
  author = {J{\"o}rg Hoffmann},
  title = {Everything You Always Wanted to Know About Planning (But Were Afraid to Ask)},
  crossref =     "ki11",
  year = {2011},
}

@Proceedings{ki11,
  title = 	 "Proceedings of the 34th Annual German Conference on Artificial Intelligence (KI'11)",
  booktitle = 	 "Proceedings of the 34th Annual German Conference on Artificial Intelligence (KI'11)",
  year = 	 "2011",
  key =		 "KI-11",
  editor =	 "S. Edelkamp",
  publisher =	 spring,
  address =      "Berlin, Germany",
}