@InProceedings{thielscher:KI09,
  author = 	"Hannes Strass and Michael Thielscher",
  title = 	"On Defaults in Action Theories",
  booktitle = 	"Proceedings of the German Annual Conference on
		  Artificial Intelligence (KI)",
  year = 	"2009",
  editor =	"B.\ Mertsching and M.\ Hund and M.\ Aziz",
  pages =	"298-305",
  volume =      "5803",
  series =      "LNCS",
  publisher =	"Springer",
  address =	"Paderborn, Germany",
  month =	sep
}