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  • × theme_ss:"OPAC"
  • × type_ss:"x"
  • × year_i:[1990 TO 2000}
  1. Brinkmann, A.: Kinder-OPACs : ein kritischer Vergleich an ausgewählten Beispielen (1998) 0.05 
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  2. Horwood, C.A.: Online public access catalogues : OPACs in Germany (1991) 0.00 
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