<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Halteren, H. / Daelemans, W. / Zavrel, J.</hi> (2001): “Improving accuracy in word class tagging through the combination of Machine Learning systems”, in: <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Computational Linguistics, 27.</hi>