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  • × author_ss:"Oltmann, S.M."
  • × theme_ss:"Informationsdienstleistungen"
  • × theme_ss:"Internet"
  • × year_i:[2000 TO 2010}
  1. Shachaf, P.; Oltmann, S.M.; Horowitz, S.M.: Service equality in virtual reference (2008) 0.00 
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    Source
    Journal of the American Society for Information Science and Technology. 59(2008) no.4, S.535-550