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Moody, G.: Searching the Web for gigabucks (1996)
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Su, L.T.; Chen, H.L.: Evaluation of Web search engines by undergraduate students (1999)
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Clarke, S.J.; Willett, P.: Estimating the recall performance of Web search engines (1997)
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Van der Walt, M.: South African search engines, directories and portals : a survey and evaluation (2000)
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Xie, M.; Wang, H.; Goh, T.N.: Quality dimensions of Internet search engines (1998)
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