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  • × classification_ss:"025.3 / dc20"
  • × language_ss:"e"
  • × theme_ss:"Geschichte der Klassifikationssysteme"
  1. Classification research for knowledge representation and organization : Proc. of the 5th Int. Study Conf. on Classification Research, Toronto, Canada, 24.-28.6.1991 (1992) 0.02
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    Classification
    025.3 / dc20
    DDC
    025.3 / dc20