@article{ Boutilier:AIJ98,
  author = {Craig Boutilier}
}
,
  url = {belchange.pdf}
}
,
  journal = {<undefined>}
}
,
  title = {A Unified Model of Qualitative Belief Change: A Dynamical Systems Perspective}
}
,
  number = {1--2}
}
,
  volume = {98}
}
,
  year = {1998}
}
,
  pages = {281--316}
}