IBZ-CD-ROM: Internationale Bibliographie der Zeitschriftenliteratur aus allen Gebieten des Wissens : CD-ROM (1994)
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IBR-CD-ROM: Internationale Bibliographie der Rezensionen wissenschaftlicher Literatur : wissenschaftliche Monographien; wissenschaftliche Rezensionen; Monographien-Datenbank; CD-ROM (1995)
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