Choice of multiple representative signatures for on-line signature verification using a clustering procedure(共著)
Data Scicence, Classification, and Related Methods ed. C. Hayashi, N Ohsumi, K. Yajima, Y. Tanaka, M. H. Bock, Y. Baba, Springer 1997
An application of the sequential dynamic progrmming matching method to off-line signature verification(共著)
Advances in Document Image Analysis, ed. N. A. Murshed & F. Bortolozzi, Springer 1997