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  • × year_i:[1990 TO 2000}
  • × author_ss:"Robertson, S.E."
  1. Robertson, S.E.; Walker, S.; Beaulieu, M.M.; Gatford, M.; Payne, A.: Okapi at TREC-4 (1996) 0.01 
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    Source
    The Fourth Text Retrieval Conference (TREC-4). Ed.: K. Harman
  2. Robertson, S.E.; Sparck Jones, K.: Simple, proven approaches to text retrieval (1997) 0.00 
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