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  • × theme_ss:"Geschichte der Klassifikationssysteme"
  • × author_ss:"Dahlberg, I."
  1. Dahlberg, I.: Major developments in classification (1977) 0.02 
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  2. Dahlberg, I.: Einheitsklassifikation (1979) 0.01 
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  3. Dahlberg, I.: Classification theory, yesterday and today (1976) 0.01 
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