A Dedicated Small Computer for Artificial Intelligence. - Hiromitsu Shirakawa; Hitoshi Ogawa; Masayuki Fujiwara (SIGSMALL/PC Symposium, 1990)

Theta: an object-oriented operating system for intelligent process monitoring. - Hiromitsu Shirakawa; Roberto Lopez-Gulliver; Shoji Inabayashi; T. Nakagawa (RTS, 1991)

When object-oriented operating system is time critical. - Hiromitsu Shirakawa; Eiji Okubo (RTS, 1992)