D. Prusa, and F. Mraz. Research Report CTU--CMP--2012--08, Center for Machine Perception, K13133 FEE Czech Technical University, Prague, Czech Republic (March 2012), (2012)
V. Lonati, and M. Pradella. Proceedings of the 34th International Symposium on Mathematical Foundations of Computer Science 2009, page 549--560. Berlin, Heidelberg, Springer-Verlag, (2009)
M. Anselmo, D. Giammarresi, and M. Madonia. Developments in Language Theory, volume 4588 of Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2007)
V. Lonati, and M. Pradella. Implementation and Application of Automata, volume 6807 of Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2011)