INTERNET-MARKs: Clear, Secure, and Portable Visual Marks for the Cyber Worlds. - Hiroshi Yoshiura; Seiichi Susaki; Yasuhiko Nagai; Tsukasa Saitoh; Hisashi Toyoshima; Ryôichi Sasaki; Satoru Tezuka (Security Protocols Workshop, 1999)

Internet-Marks: the secure seal for WWW site authentication. - Shinsuke Honjo; Seiichi Susaki; Hiroshi Yoshiura; Hirokazu Aoshima; Satoru Tezuka; Ryôichi Sasaki; Tsukasa Saitoh; Hisashi Toyoshima (ICPADS Workshops, 2000)

Authenticating Web-Based Virtual Shops Using Signature-Embedded Marks - A Practical Analysis. - Hiroshi Yoshiura; Takaaki Shigematsu; Seiichi Susaki; Tsukasa Saitoh; Hisashi Toyoshima; Chikako Kurita; Satoru Tezuka; Ryôichi Sasaki (Security Protocols Workshop, 2000)