A Collaborative Distance Learning System and its Experimental Results. - Takashi Dasai; Hisao Koizumi; Kiyoshi Yokochi (HCI (2), 1997)

Interactive distance learning between Japan and Germany. - Hisao Koizumi; Takashi Dasai; Klaus-Dieter Graf; Kiyoshi Yokochi; Seiji Moriya (Communications and Networking in Education, 1999)

ISDN-based interactive distance learning between Japanese and German elementary schools. - Seiji Moriya; Takashi Dasai; Hisao Koizumi; Klaus-Dieter Graf (ICPADS Workshops, 2000)