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Maheswari, J.U.; Karpagam, G.R.: ¬A conceptual framework for ontology based information retrieval (2010)
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Boer, V. de; Porter, A.L.; Someren, M. v.: Extracting historical time periods from the Web (2010)
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ELINOR : Electronic Library Project (1998)
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Macpherson, K.: ¬An information processing model of undergraduate electronic database information retrieval (2004)
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Haas, S.W.: Natural language processing : toward large-scale, robust systems (1996)
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