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Hedrich, S.: Allgemeine Adreßbücher, Staats- und Verwaltungsadreßbücher der deutschsprachigen Länder : ein vergleichender Überblick (1995)
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- Informationsmittel für Bibliotheken. 3(1995) H.4, S.909-921
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Hedrich, S.: ¬Ein Vergleich von fünf mehrbändigen Taschenbuchlexika (1996)
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- Informationsmittel für Bibliotheken. 4(1996) H.2/3, S.250-255
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Hedrich, S.: Multimedia-Lexika (1997)
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- Informationsmittel für Bibliotheken. 5(1997) H.1/2, S.154-167
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Hedrich, S.: Universitäten und Hochschulen : internationale Adreßbücher im Vergleich (1995)
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- Informationsmittel für Bibliotheken. 3(1995) H.3, S.510-516