@InProceedings{thielscher:KR96,
  author = 	"Michael Thielscher",
  title =       "Causality and the Qualification Problem",
  booktitle =   "Proceedings of the International Conference on
                  Principles of Knowledge Representation and Reasoning
                  (KR)",
  year = 	1996,
  editor = 	"L.~C.\ Aiello and J.\ Doyle and S.~C.\ Shapiro",
  pages =	"51--62",
  address = 	"Cambridge, MA",
  publisher = 	"Morgan Kaufmann",
  month =       nov
}