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Periodicals contents index on CD-ROM : PCI (1994) 0.03

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Brinkman's cumulative catalogue on CD-ROM (1996-) 0.01

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Date: 16. 2.1997 16:22:51

Deutsche Nationalbibliographie : CD-ROM 1972-1985 (1997) 0.01

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Date: 7. 5.2000 10:38:22

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