Mireille Ducassé. Opium - An Advanced Debugging System. In Gérard Comyn, Norbert E. Fuchs, Michael Ratcliffe, editors, Logic Programming in Action, Second International Logic Programming Summer School, LPSS 92, Zurich, Switzerland, September 7-11, 1992, Proceedings. Volume 636 of Lecture Notes in Computer Science, pages 303-312, Springer, 1992.
Abstract is missing.