M. Ozdil, and F. Vural. Document Analysis and Recognition, 1997., Proceedings of the Fourth
International Conference on, 2, page 483--486. IEEE Computer Society, (1997)
A. Nomura, K. Michishita, S. Uchida, and M. Suzuki. Proceedings of the Seventh International Conference on Document Analysis
and Recognition, (ICDAR2003), 1, page 126--130. ieeeaddr, ieee, (August 2003)
T. Beran, and T. Macek. Machine Learning and Data Mining in Pattern Recognition. First International Workshop, MLDM'99. Proceedings. (Lecture Notes in Artificial Intelligence Vol.1715), (1999)