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Umstätter, W.: Freitext oder kontrolliertes Vokabular : was ist besser? (1983)
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Sievert, M.E.; McKinin, E.J.: Why full-text misses some relevant documents : an analysis of documents not retrieved by CCML or MEDIS (1989)
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- Date
- 9. 1.1996 10:22:31