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  • × year_i:[1990 TO 2000}
  • × author_ss:"Vakkari, P."
  • × author_ss:"Järvelin, K."
  • × language_ss:"e"
  • × type_ss:"a"
  1. Järvelin, K.; Vakkari, P.: ¬The evolution of library and information science 1965-1985 : a content analysis of journal titles (1993) 1.00 
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