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  • × theme_ss:"OPAC"
  • × year_i:[1990 TO 2000}
  1. Advances in online public access catalogs : Vol.1 (1992) 7.07 
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  2. DeHart, F.E.; Matthews, K.: Subject enhancements and OPACs : planning ahead (1990) 7.07 
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  3. Barnes, S.; McCue, J.: Linking library records to bibliographic databases : an analysis of common data elements in BIOSIS, Agricola, and the OPAC (1991) 7.07 
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