TY - RPRT ID - F.1990 T1 - Belief Functions and Nonmonotonic Reasoning A1 - Klawonn, Frank A1 - Kruse, Rudolf A1 - Schwecke, E. TI - Report of the DRUMS RP1 Workshop on Nonmonotonic Reasoning Y1 - 1990 T2 - TU Braunschweig AD - Marseille ER -