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Feldman, S.: "Just the answer, please" : choosing a Web search service (1997)
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Kenney, A.R.; McGovern, N.Y.; Martinez, I.T.; Heidig, L.J.: Google meets eBay : what academic librarians can learn from alternative information providers (2003)
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Search tools (1997)
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Carroll, N.: Search engine optimization (2009)
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Petrelli, D.; Lanfranchi, V.; Ciravegna, F.; Begdev, R.; Chapman, S.: Highly focused document retrieval in aerospace engineering : user interaction design and evaluation (2011)
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