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  • × author_ss:"Perreault, J.M."
  1. Perreault, J.M.: Towards a theory for UDC : essays aimed at structural understanding and operational improvement (1969) 5.97 
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  2. Perreault, J.M.: ¬An introduction to Universal Decimal Classification (1969) 5.97 
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  3. Perreault, J.M.: Automized retranslatability of UDC codes (1968) 5.97 
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