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  • × year_i:[1990 TO 2000}
  1. Reference and information services : an introduction (1991) 9.76 
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  2. Reference and information services : an introduction (1995) 9.76 
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  3. Kuhlen, R.: ¬Die Konsequenzen von Informationsassistenten : was bedeutet informationelle Autonomie oder wie kann Vertrauen in elektronische Dienste in offenen Informationsmärkten gesichert werden? (1999) 9.76 
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