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  • × theme_ss:"Geschichte der Klassifikationssysteme"
  • × year_i:[1920 TO 1930}
  1. Wieser, M.: Wissenschaftliches Grundschema für Volksbüchereien (1926) 0.03 
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  2. Diesch, K.: Katalogprobleme und Dezimalklassifikation : eine bibliothekswissenschaftliche Untersuchung und Abwehr (1929) 0.02 
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  3. Bliss, H.E.: ¬The organization of knowledge and the system of the sciences (1929) 0.01 
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