An agent-based architecture for securing mobile IP. - Xun Yi; Shigeki Kitazawa; Hisao Sakazaki; Eiji Okamoto; D. Frank Hsu (Mobile Networks and Computing, 1999)

Improvement of Secure Access Control Agent for Distributed Files. - Shigeki Kitazawa; Xun Yi; Eiji Okamoto; Masahiro Mambo (ICPP Workshops, 1999)

An Agent-Based Model of Anonymous Communication Protocols. - Shigeki Kitazawa; Masakazu Soshi; Atsuko Miyaji (WETICE, 2001)

Evaluation of Anonymity of Practical Anonymous Communication Networks. - Shigeki Kitazawa; Masakazu Soshi; Atsuko Miyaji (ACISP, 2003)