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  • × theme_ss:"Geschichte der Klassifikationssysteme"
  • × theme_ss:"International bedeutende Universalklassifikationen"
  • × year_i:[1970 TO 1980}
  1. Dahlberg, I.: Major developments in classification (1977) 0.00 
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  2. Friis-Hansen, J.B.: What Dewey knew (1976) 0.00 
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