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Eckes, A.; Pietzsch, E.: Heidelberger Electronic Document Delivery : Elektronische Bestellung und Lieferung von Zeitschriftenaufsätzen aus der Universitätsbibliothek Heidelberg (EDD) (1997)
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Pietzsch, E.: Internet-Objekte : automatisierte Erschließung und inhaltsbezogene Recherche (1997)
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Pietzsch, E.: Kostengünstige Digitalisierung eines Zettelkataloges (1998)
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