@INPROCEEDINGS{Kern-Isberner00_Konferenz_NMR,
  AUTHOR = {G. Kern-Isberner},
  TITLE  = {Conditional preservation and conditional indifference},
  BOOKTITLE = {Proceedings 8th International Workshop on Nonmonotonic Reasoning ({NMR}'2000)},
  ADDRESS = {Breckenridge, Colorado},
  YEAR   = 2000}