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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

Rau, L.F.: Conceptual information extraction and retrieval from natural language input (198) 0.01

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Date: 16. 8.1998 13:29:20

Schwarz, C.: THESYS: Thesaurus Syntax System : a fully automatic thesaurus building aid (1988) 0.01

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Date: 6. 1.1999 10:22:07

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