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  • × theme_ss:"Informationsmittel"
  1. Buntrock, R.E.: UMI's applied science and technology plus (1997) 9.22 
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  2. UMI introduces new ProQuest databases (1998) 9.22 
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  3. Mandelbaum, J.: ProQuest full-text newspapers : an online newsstand at your library (1998) 9.22 
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