R. Martin Chavez Gregory F. Cooper KNET: integrating hypermedia and normative bayesian modeling. 339-350 1988 conf/uai/1988 UAI http://uai.sis.pitt.edu/displayArticleDetails.jsp?mmnu=1&smnu=2&article_id=1856&proceeding_id=1004 db/conf/uai/uai1988.html#ChavezC88