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  • × author_ss:"Gratch, B."
  • × theme_ss:"Informationsdienstleistungen"
  • × year_i:[1980 TO 1990}
  1. Miller, W.; Gratch, B.: Making connections : computerized reference services and people (1989) 0.02 
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    Source
    Library trends. 37(1989), S.387-401