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  • × year_i:[1980 TO 1990}
  1. Heydrich, J.: Bibliographie der Bibliographien für Leitbibliotheken (1981) 10.09 
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    Heydrich, J.
  2. Heydrich, J.; Schmelter, G.: Einsatz von Retrieval-Geräten bei Microfiche-Arbeiten in Zentralkatalogen und Bibliotheken (1982) 10.09 
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    Heydrich, J.

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