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Garnsey, M.R.: What distance learners should know about information retrieval on the World Wide Web (2002)
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Mangold, C.: ¬A survey and classification of semantic search approaches (2007)
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Negm, E.; AbdelRahman, S.; Bahgat, R.: PREFCA: a portal retrieval engine based on formal concept analysis (2017)
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Austin, D.: How Google finds your needle in the Web's haystack : as we'll see, the trick is to ask the web itself to rank the importance of pages... (2006)
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