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Mundt, M.: Vergleichende Untersuchung der Abfrageoberflächen bibliographischr Datenbanken und eines Metainformationssystems, dargestellt am Beispiel von Datenbanksystemen des Umweltbundesamtes (1999)
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Potmesil, M.: Maps alive : viewing geospatial information on the WWW (1997)
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Nicholas, D.: LISA Plus on CD-ROM : version 4 (1997)
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