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  • × theme_ss:"Klassifikationssysteme"
  • × year_i:[1940 TO 1950}
  1. Cunningham, E.R.: Classification for medical literature (1946) 0.03 
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  2. Systematik und Index des Realkataloges der Stadtbücherei Bochum : Entwurf (1948) 0.01 
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  3. Bliss, H.E.: ¬A bibliographic classification (1940-53) 0.00 
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