TY - JOUR A1 - Anger, Christian A1 - Konczak, Kathrin A1 - Linke, Thomas T1 - A system for non-monotonic reasoning under answer set semantics Y1 - 2001 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/18368 SN - 3-540-42593-4 ER -