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Byway, B.: Using Web search engines more effectively (1997)
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Bilal, D.: Web search engines for children : a comparative study and performance evaluation of Yahooligans!, AskJeeves for Kids, and Super Snooper (1999)
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Stock, W.G.: On relevance distributions (2006)
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Beheshti, J.; Bowler, L.; Large, A.; Nesset, V.: Towards an alternative information retrieval system for children (2005)
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Hock, R.: Search engines (2009)
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