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  • × theme_ss:"OPAC"
  1. Hert, C.A.; Nilan, M.S.: User-based information retrieval evaluation : an examination of an online public access catalog (1991) 9.30 
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  2. Nilan, M.S.; Hert, C.A.: Incorporating the user in system evaluation and design (1992) 9.30 
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  3. Hert, C.A.: Information retrieval as situated action (1995) 9.30 
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  4. Hert, C.A.: Information retrieval as situated action (1995) 9.30 
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  5. Hert, C.A.: User goals on an online public access catalog (1996) 9.30 
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