Sentence Modality Assignment in the Prague Dependency Treebank. In: Text, Speech and Dialogue: 15th International Conference, TSD 2012. Proceedings, Lecture Notes in Computer Science, ISSN 0302-9743, 7499, pp. 56-63, Springer Verlag, Berlin / Heidelberg, ISBN 978-3-642-32789-6 (local PDF, bibtex)