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  • × author_ss:"Robertson, A.M."
  1. Ekmekcioglu, F.C.; Robertson, A.M.; Willett, P.: Effectiveness of query expansion in ranked-output document retrieval systems (1992) 6.08 
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  2. Robertson, A.M.; Willett, P.: Applications of n-grams in textual information systems (1998) 6.08 
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