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Griffith, C.: FREESTYLE: LEXIS-NEXIS goes natural (1994)
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Stock, W.G.: Natürlichsprachige Suche - more like this! : Lexis-Nexis' Freestyle (1998)
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LEXIS-NEXIS expands services (1998)
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Pritchard-Schoch, T.: Comparing natural language retrieval : Win & Freestyle (1995)
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Mandelbaum, J.: LEXIS-NEXIS News Quick-Check (1997)
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