Kazuo Watabe Shiro Sakata Kazutoshi Maeno Hideyuki Fukuoka Toyoko Ohmori Distributed Multiparty Desktop Conferencing System: MERMAID. 27-38 1990 CSCW http://doi.acm.org/10.1145/99332.99338 db/conf/cscw/cscw1990.html#WatabeSMFO90