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Lewandowski, D.: ¬The retrieval effectiveness of search engines on navigational queries (2011)
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Spink, A.; Jansen, B.J.; Blakely, C.; Koshman, S.: ¬A study of results overlap and uniqueness among major Web search engines (2006)
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Bilal, D.: Ranking, relevance judgment, and precision of information retrieval on children's queries : evaluation of Google, Yahoo!, Bing, Yahoo! Kids, and ask Kids (2012)
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Jansen, B.J.; Molina, P.R.: ¬The effectiveness of Web search engines for retrieving relevant ecommerce links (2006)
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Silva, A.J.C.; Gonçalves, M.A.; Laender, A.H.F.; Modesto, M.A.B.; Cristo, M.; Ziviani, N.: Finding what is missing from a digital library : a case study in the computer science field (2009)
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