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Crews, K.D.: ¬The accuracy of reference service : variables for research and implementation (1988)
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Swift, I.I.: Classifying readers' questions (1934)
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Maciuszko, K.L.: ¬A quiet revolution : community online systems (1990)
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Gardner, R.J.: ¬The ten commandments for library customers (1975)
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Mayerhöfer, J.: Informations- und Wissensvermittlung in Bibliotheken (1983)
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Krötzsch, J.: ¬Das Gelbe Haus Schotten (1992)
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Holler, U.: ¬Die Organisation der Informationsarbeit bei der Stadtbibliothek Duisburg (1984)
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Fligge, J.: ¬Die Bibliotheken, Mittler im technischen Wandel (1985)
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Ensor, P.: ¬The reference medium of choice : print or electronic (1994)
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Eisenburger, P.: ¬Die Stadtbibliothek im Gelben Haus Schotten (1991)
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Nagl, M.: ¬Die Bibliothek als kulturelles Dienstleistungszentrum (1988)
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Braun, M.: Aufbau eines Fax-Netzes (1993)
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Bittner, E.: Bildschirmtext im Angebot einer öffentlichen Bibliothek : das Beispiel Bielefeld (1992)
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Umlauf, K.: Verbraucherberatung in der Stadtbibliothek Ludwigsburg (1989)
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Schwuchow, W.: Qualitätsmanagement für Informationsdienste (1993)
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Kraß, U.: Auskunftsdienst im Dreyeckland (1993)
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Derr, R.L.: Questions: definitions, structure, and classification (1985)
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Nohr, H.: Buch - Computer - Bibliothek (1992)
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DATEX-J: neuer Mehrwertdienst der Telekom (1993)
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