@InProceedings{	  dixetal00c,
  author	= {Carlos Ches{\~n}evar and J\"{u}rgen Dix and Guillermo
		  Simari and Frieder Stolzenburg},
  title		= {Relating Defeasible and Normal Logic Programming through
		  Transformation Properties},
  booktitle	= "Proceedings of the 6th Argentinean Congress on Computer
		  Science, CACIC 2000",
  year		= 2000,
  month		= {October},
  pages		= {371--381},
  organization	= {JAIIO, Buenos Aires, Argentina},
  isbn		= {ISBN 950-763-033-3}
}