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  • × author_ss:"Gugelchuk, G.M."
  • × theme_ss:"Informationsdienstleistungen"
  • × type_ss:"a"
  • × year_i:[1980 TO 1990}
  1. Murfin, M.E.; Gugelchuk, G.M.: Development and testing of a reference transaction assessment instrument (1987) 0.00 
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    Type
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