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Gebhardt, F.: Semantisches Wissen in Datenbanken : ein Literaturbericht (1987) 0.03

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Belkin, N.J.; Croft, W.B.: Retrieval techniques (1987) 0.02

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Source: Annual review of information science and technology. 22(1987), S.109-145

Smith, L.C.: Artificial intelligence and information retrieval (1987) 0.02

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Source: Annual review of information science and technology. 22(1987), S.41-77

Warner, A.J.: Natural language processing (1987) 0.02

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Source: Annual review of information science and technology. 22(1987), S.79-108

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