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  1. Bar-Ilan, J.: ¬The use of Web search engines in information science research (2003) 0.00 
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    Source
    Annual review of information science and technology. 38(2004), S.231-288
  2. Oppenheim, C.; Morris, A.; McKnight, C.: ¬The evaluation of WWW search engines (2000) 0.00 
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    Source
    Journal of documentation. 56(2000) no.2, S.190-211

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