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Schwarz, C.: Freitextrecherche: Grenzen und Möglichkeiten (1982)
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Umstätter, W.: Freitext oder kontrolliertes Vokabular : was ist besser? (1983)
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Huschens, C.: Freitextindexierung in der Parlamentsdokumentation (1986)
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Freitext in Informationssystemen (1985)
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Wenzel, F.: Semantische Eingrenzung im Freitext-Retrieval auf der Basis morphologischer Segmentierungen (1980)
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