 He has written or coauthored over 70 papers, co-edited the book ``Structured Computer Vision''; he is the author of a  textbook entitled ``The Elements of Artificial Intelligence: An Introduction Using LISP'' published in 1987 (with Common Lisp editions in 1990 and 1995) and its accompanying <a href=http://www.cs.washington.edu/research/metip/eaicl2.html> software</a>. He is currently working on a book on the subject of parallel computation in image processing. <P>
