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Biebricher, P.; Fuhr, N.; Knorz, G.; Lustig, G.; Schwandtner, M.: Entwicklung und Anwendung des automatischen Indexierungssystems AIR/PHYS (1988)
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Biebricher, P.; Fuhr, N.; Lustig, G.; Schwantner, M.; Knorz, G.: ¬Das automatische Indexierungssystem AIR/PHYS (1988)
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Schwantner, M.: Entwicklung und Pflege des Indexierungswörterbuches PHYS/PILOT (1988)
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Lück, W.: Qualität von bibliographischen Datenbanken : die Datenbank PHYS (1997)
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Jersek, T.: Automatische DDC-Klassifizierung mit Lingo : Vorgehensweise und Ergebnisse (2012)
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