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Sherman, C.: Google power : Unleash the full potential of Google (2005)
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Berry, M.W.; Browne, M.: Understanding search engines : mathematical modeling and text retrieval (1999)
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Berry, M.W.; Browne, M.: Understanding search engines : mathematical modeling and text retrieval (2005)
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Belew, R.K.: Finding out about : a cognitive perspective on search engine technology and the WWW (2001)
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