Bescos, Sylvie, Bisière, Christophe, Gailly, Pierre-Joseph and Krautter, Wolfgang (1992) The PRINCE Project and its Applications. In: Logic Programming in Action nouvelle édition: Second International Logic Programming Summer School, LPSS '92, Zurich, Switzerland, September 7-11, 1992, Proceedings Springer. Series “Lecture Notes in Computer Science 2017”, Vol. 636. ISBN 978-3-540-55930-7