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  • × year_i:[1990 TO 2000}
  • × author_ss:"Hjoerland, B."
  1. Hjoerland, B.: ¬The concept of 'subject' in information science (1992) 6.60 
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  2. Hjoerland, B.: Subject representation and information seeking : contributions to a theory based on the theory of knowledge (1993) 6.60 
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