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Lewandowski, D.: Suchmaschinen verstehen (2018)
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Lewandowski, D.: Suchmaschinen verstehen (2015)
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Lewandowski, D.: Suchmaschinen verstehen : 3. vollständig überarbeitete und erweiterte Aufl. (2021)
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Lewandowski, D.: Web Information Retrieval : Technologien zur Informationssuche im Internet (2005)
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