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Engel, R.: Erfahrungen mit einem neuen Medium : Recherchieren im Verzeichnis lieferbarer Bücher auf CD-ROM (1987)
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Engel, A.K.: Im Takt des Bewusstseins (2018)
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Engel, G.: ¬A personal portable information interface : a model for meeting user needs in the networked information environment (1997)
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Engel, G.: User instruction for access to catalogs and databases on the Internet (1991)
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Engel, F.: Expertensuche in semantisch integrierten Datenbeständen (2015)
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Huneke, B.: Bibliographien von Informationsmitteln und ihr Nutzwert für den Auskunftsdienst in Bibliotheken : vergleichende Untersuchung der Handbücher von 'Totok-Weitzel', 'Walford' und 'Sheehy' (1988)
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Auskunftsmittel - Charakterisierung und Typologie : Arbeitshilfen zum Auskunftsdienst; 2) (1986)
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Reinecke, B.: Zitaten- und Sprichwörterlexika als Informationsmittel in Öffentlichen Bibliotheken : Typologie und vergleichende Untersuchung ausgewählter Nachschlagewerke (1994)
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Voß, J.; Scherer, F.: Hochschulbibliografien an deutschen Hochschulen : Eine vergleichende Bestandsaufnahme (2009)
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Gretz, M.; Thomas, M.: Indexierungen in biomedizinischen Literaturdatenbanken : eine vergleichende Analyse (1991)
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