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7e Dag van het Document : 19 & 20 mei 1998, Congrescentrum De Reehorst, Ede ; proceedings (1998)
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Social Media und Web Science : das Web als Lebensraum, Düsseldorf, 22. - 23. März 2012, Proceedings, hrsg. von Marlies Ockenfeld, Isabella Peters und Katrin Weller. DGI, Frankfurt am Main 2012 (2012)
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Handbuch Informationskompetenz (2016)
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¬Die Googleisierung der Informationssuche : Suchmaschinen zwischen Nutzung und Regulierung (2014)
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Looking for information : a survey on research on information seeking, needs, and behavior (2016)
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Daten- und Informationsqualität : auf dem Weg zur Information Excellence (2018)
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Web search engine research (2012)
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