@InProceedings{fabkon05a,
  author = 	 {W. Faber and K. Konczak},
  title = 	 {Strong Equivalence for Logic Programs with Preferences},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proceedings of the Nineteenth International Joint Conference on Artificial Intelligence (IJCAI-05)},
  pages = 	 430--435,
  year = 	 {2005},
  editor = 	 {L. Kaelbling and A. Saffiotti},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  OPTaddress = 	 {},
  OPTmonth = 	 {},
  OPTorganization = {},
  OPTpublisher = {},
  OPTannote = 	 {}
}