Proceedings of the Fourth International Conference on Document Analysis and Recognition Document analysis and recognition Document Analysis and Recognition, 1997., Proceedings of the Fourth International Conference on. 1:444-448 vol.1 1997
1996 IEEE International Conference on Systems, Man and Cybernetics. Information Intelligence and Systems (Cat. No.96CH35929) Systems, man and cybernetics Systems, Man, and Cybernetics, 1996., IEEE International Conference on. 1:64-69 vol.1 1996