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  • × author_ss:"Pika, J."
  • × type_ss:"el"
  1. Pika, J.: ¬Die Sacherschliessung an der ETH-Bibliothek Zürich (2003) 0.01 
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  2. Pika, J.: Universal Decimal Classification at the ETH-Bibliothek Zürich : a Swiss perspective (2007) 0.01 
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