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Notess, G.R.: Search engine relevance : the never-ending quest (2000)
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King, D.: Specialized search engines : alternatives to the big guys (2000)
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Reimer, U.: Einführung in die Wissensorganisation (2023)
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Krischker, U.: Formale Analyse (Erfassung) von Dokumenten (1990)
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Wätjen, H.-J.: Mensch oder Maschine? : Auswahl und Erschließung vonm Informationsressourcen im Internet (1996)
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