TY - BOOK AU - Nebel,Bernhard TI - Reasoning and revision in hybrid representation systems SN - 3540524436 PY - 1990/// CY - Berlin PB - Springer-Verlag KW - Artifical intelligence KW - Knowledge, Theory of KW - Reasoning N1 - 'Papers presented at the secpnd Irish Conference on Artificial Intelligence and cognitive Science, held at Dublin City University in september 1989'- pref ER -