A simulation model for data base system performance evaluation. - Fumio Nakamura; Ikuzo Yoshida; Hidefumi Kondo (AFIPS National Computer Conference, 1975)

A Development of a Conceptual Schema Design Aid in the Entity-Relationship Model. - Hirotaka Sakai; Hidefumi Kondo; Zenshiro Kawasaki (ER, 1981)

A New Approach to Knowledge Base Management Systems. - Hidefumi Kondo; Takuo Koguchi (ISMIS, 1987)

Knowledge Representation with Abstractive Layers for Information Retrieval. - Takuo Koguchi; Hidefumi Kondo; Masahiro Oba; Hidenori Itoh (FGCS, 1988)

A Visual User Interface for a Personal Information Base using a Concept Network. - Hiromichi Fujisawa; Itsuko Kiuchi; Takuo Koguchi; Hidefumi Kondo (DASFAA, 1991)