V. Karkaletsis, C. Spyropoulos, and G. Petasis. volume 21 of Intelligent Systems, Control and Automation: Science and Engineering, chapter 12, page 131--142. Springer Berlin / Heidelberg, (1999)Presented at the 3rd European Robotics Intelligent Systems & Control Conference (EURISCON’98), June 22--25 1998, Athens, Greece..
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)
Y. LeCun, F. Huang, and L. Bottou. Computer Vision and Pattern Recognition, 2004. CVPR 2004. Proceedings
of the 2004 IEEE Computer Society Conference on, 2, page II-97--104 Vol.2. (2004)