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Lewandowski, D.: Nachweis deutschsprachiger bibliotheks- und informationswissenschaftlicher Aufsätze in Google Scholar (2007) 1.00
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Lewandowski, D.: Mit welchen Kennzahlen lässt sich die Qualität von Suchmaschinen messen? (2007) 1.00
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Lewandowski, D.: ¬The retrieval effectiveness of web search engines : considering results descriptions (2008) 1.00
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Lewandowski, D.; Mayr, P.: Exploring the academic invisible Web (2006) 1.00
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