Function of the pupil in vision and information capacity of retinal image. - Yutaka Hirata; Kazutsuna Yamaji; Hiroyuki Sakai 005; Shiro Usui (Syst. Comput. Jpn., 2003)

Customizable neuroinformatics database system: XooNIps and its application to the pupil platform. - Kazutsuna Yamaji; Hiroyuki Sakai 005; Yoshihiro Okumura; Shiro Usui (Comput. Biol. Medicine, 2007)

Concierge: Personal database software for managing digital research resources. - Hiroyuki Sakai 005; Toshihiro Aoyama; Kazutsuna Yamaji; Shiro Usui (Frontiers Neuroinformatics, 2007)