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Umstätter, W.: Freitext oder kontrolliertes Vokabular : was ist besser? (1983)
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Umstätter, W.: Informetrische Hilfe durch das 'intelligente Terminal' (1986)
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Umstätter, W.: Was kann und was sollte Aus- und Fortbildung für Onliner leisten (1987)
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Umstätter, W.: Was verändert die Informationstechnologie in den Universitätsbibliotheken? (1989)
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Umstätter, W.; Rehm, M.; Dorogi, Z.: ¬Die Halbwertszeit in der naturwissenschaftlichen Literatur (1982)
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