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Evolution of Knowledge Bases (KBs) expressed in Description Logics (DLs) proved its importance. Recent studies of evolution in DLs mostly focussed on model-based approaches. They showed that evolution of KBs in tractable DLs, such as DL-Lite, suffers from inexpressibility, i.e., the result of evolution cannot be captured in DL-Lite. What is missing in these studies is understanding: in which DL-Lite fragments evolution can be captured, what causes the inexpressibility, which logics isdblp:conf/amw/KharlamovZ11 fatcat:3ztbqffaufgtxm6uxy3xyt6s4u