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Kuhlen, R.: Abstracts, abstracting : intellektuelle und maschinelle Verfahren (1990)
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- Grundlagen der praktischen Information und Dokumentation. 3. Aufl. Hrsg.: M. Buder u.a. Bd.1
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Kuhlen, R.: Abstracts, abstracting : intellektuelle und maschinelle Verfahren (1997)
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- Grundlagen der praktischen Information und Dokumentation: ein Handbuch zur Einführung in die fachliche Informationsarbeit. 4. Aufl. Hrsg.: M. Buder u.a
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Endres-Niggemeyer, B.: Summarizing information (1998)
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