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Filo, D.; Yang, J.: Yahoo! unplugged : Your discovery guide to the Web (1995)
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Cooke, A.: ¬A guide to finding quality information on the Internet : selection and evaluation strategies (1999)
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Cheong, F.C.: Internet agents : spiders, wanderers, brokers, and bots (1996)
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Berry, M.W.; Browne, M.: Understanding search engines : mathematical modeling and text retrieval (1999)
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Croft, W.B.; Metzler, D.; Strohman, T.: Search engines : information retrieval in practice (2010)
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Web search engine research (2012)
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Calishain, T.; Dornfest, R.; Adam, D.J.: Google Pocket Guide (2003)
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Berry, M.W.; Browne, M.: Understanding search engines : mathematical modeling and text retrieval (2005)
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