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Su, L.T.; Chen, H.L.: Evaluation of Web search engines by undergraduate students (1999)
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Keith, S.: Searching for news headlines : connections between unresolved hyperlinking issues and a new battle over copyright online (2007)
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Bradley, P.: Towards a common user interface (1995)
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Stock, M.; Stock, W.G.: Intellectual property information : A comparative analysis of main information providers (2006)
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