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Voigt, K.: Information über Information : CD-ROM und Online-Datenbanken im Bereich Umweltschutz (1995)
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- Date
- 29. 1.1999 16:37:58
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Voigt, K.; Benz, J.: Umweltschutz im Internet : Datenquellen zu ökologischen und chemischen Fragestellungen (1996)
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- Date
- 29. 1.1999 16:38:51