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Jansen, B.J.; Spink, A.; Blakely, C.; Koshman, S.: Defining a session on Web search engines (2007)
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- Journal of the American Society for Information Science and Technology. 58(2007) no.6, S.862-871
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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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- Information processing and management. 42(2006) no.5, S.1379-1391