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author_ss:"Rittberger, W."
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Lück, W.; Rittberger, W.; Schwantner, M.: ¬Der Einsatz des Automatischen Indexierungs- und Retrievalsystems (AIR) im Fachinformationszentrum Karlsruhe (1994)
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Rittberger, M.; Rittberger, W.: Measuring quality in the production of databases (1997)
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