@InProceedings{	  dixgotmar93,
  author	= {J\"{u}rgen Dix and Georg Gottlob and Viktor Marek},
  title		= {{C}ausal {M}odels for {D}isjunctive {L}ogic {P}rograms},
  booktitle	= {Proceedings of the 11th Int. Conf. on Logic Programming,
		  S. Margherita Ligure},
  year		= {1994},
  pages		= {290--302},
  editor	= {Pascal Van Hentenryck},
  publisher	= {MIT},
  month		= {June}
}