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  • × author_ss:"Ma, W."
  • × theme_ss:"Informationsdienstleistungen"
  • × year_i:[2000 TO 2010}
  • × theme_ss:"Internet"
  1. Ma, W.: ¬A database selection expert system based on reference librarians's database selection strategy : a usability and empirical evaluation (2002) 1.00
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      1.0 = queryNorm