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  • × year_i:[2000 TO 2010}
  • × author_ss:"Waltman, L."
  1. Waltman, L.; Eck, N.J. van: Some comments on the question whether co-occurrence data should be normalized (2007) 9.21 
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  2. Eck, N.J. van; Waltman, L.: Appropriate similarity measures for author co-citation analysis (2008) 9.21 
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  3. Eck, N.J. van; Waltman, L.: How to normalize cooccurrence data? : an analysis of some well-known similarity measures (2009) 9.21 
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