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Rehurek, R.: Machine learning in text analysis (2011)
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Dalitz, W.; Grötschel, M.; Lügger, J.: Neue Wege für die Fachinformation : am Beispiel der 'Mathematik' (1994)
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Habermann, K.: vifamath - mathematische Fachinformation aus einer Hand (2010)
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Dehaene, S.: ¬Der Zahlensinn oder warum wir rechnen können (1999)
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Rival, I.: Order - a theory with a view (1989)
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