@incollection{Chickering96uai,
  author =	 "David Maxwell Chickering and David Heckerman",
  title =	 "Efficient Approximations for the Marginal Likelihood of Incomplete Data Given a {B}ayesian Network",
  year =	 1996,
  Booktitle =	 "Proceedings of Twelfth Conference on Uncertainty in
                  Artificial Intelligence, {\rm Portland, OR}",
  publisher =	 "Morgan Kaufmann",
  Month =	 "August",
  editors =	 "E. Horvitz and F. Jensen",
  pages =	 "158-168"
}