@incollection{CMH03uai,
  author =	 {David Maxwell Chickering and Christopher Meek and
                  David Heckerman},
  title =	 {Large-Sample Learning of {B}ayesian Networks is Hard},
  year =	 2003,
  Booktitle =	 {Proceedings of the Nineteenth Conference on
                  Uncertainty in Artificial Intelligence, {\rm
                  Acapulco, Mexico}},
  publisher =	 {Morgan Kaufmann},
  pages =	 "124-133",
  editors =	 "U. Kjaerulff and C. Meek",
}