NTT human interface laboratories (lab review). - Takaya Endo; Hiroshi Ishii 001 (CHI, 1990)

Interfaces for consumer products: how to camouflage the computer? - Maddy D. Brouwer-Janse; Raymond W. Bennett; Takaya Endo; Floris L. van Nes; Hugo J. Strubbe; Donald R. Gentner (CHI, 1992)

Can a Robot and a Man Communicate Heart to Heart? -A New Perspective of Human Interface Technologies-. - Takaya Endo (J. Robotics Mechatronics, 1992)