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Holler, U.: Benutzerfreundlichkeit von Sachkatalogen (1975)
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Holler, U.: ¬Die Organisation der Informationsarbeit bei der Stadtbibliothek Duisburg (1984)
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Heyermann, D.; Holler, U.: Noch fehlt eine "Texttankstelle" : Erfahrungen mit E-Books in der Stadtbibliothek Duisburg (2002)
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