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  1. Lewandowski, D.: Freiwillige Selbstkontrolle, Stärkung "alternativer Suchmaschinen" : Suchmaschinen und Politik (2005) 7.60 
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  2. Lewandowski, D.; Mayr, P.: Exploring the academic invisible Web (2006) 7.60 
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  3. Lewandowski, D.: Nachweis deutschsprachiger bibliotheks- und informationswissenschaftlicher Aufsätze in Google Scholar (2007) 7.60 
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  4. Lewandowski, D.: ¬The retrieval effectiveness of web search engines : considering results descriptions (2008) 7.60 
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  5. Lewandowski, D.; Mayr, P.: Exploring the academic invisible Web (2006) 7.60 
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  6. Lewandowski, D.: How can library materials be ranked in the OPAC? (2009) 7.60 
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