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Pflug, G.: ¬Die automatisierten Dienstleistungen der Deutschen Bibliothek und ihre Voraussetzugen in den deutschen Bibliotheken (1979)
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- Bibliotheken als Informationsvermittler: Probleme und Modelle. Vorträge, gehalten auf dem Bibliothekskongreß 1978 vom 16.-20.5. in Stuttgart. Hrsg. von P. Kaegbein u.a
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Pflug, G.: Information Retrieval System (1972)
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- Libri. 22(1972) no.1, S.85-92