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  • × author_ss:"Halverson, J."
  • × year_i:[1980 TO 1990}
  1. Vendrell, N.V.; Halverson, J.; Salas-Tull, L.: Evaluation of a program for assigning subject headings to local thesis and dissertations (1988) 0.03 
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  2. Salas-Tull, L.; Halverson, J.: Subject heading revision : a comparative study (1987) 0.02 
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