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  • × theme_ss:"OPAC"
  • × theme_ss:"Literaturübersicht"
  1. Efthimiadis, E.N.; Mitev, N.N.: ¬A classified bibliography on online public access catalogues (1987) 0.03 
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  2. Dale, D.C.: Subject access in online catalogs : an overview bibliography (1989) 0.02 
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  3. Efthimiadis, E.N.; Neilson, C.: ¬A classified bibliography on online public access catalogues (1989) 0.02 
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