Kevin Wilson Vibhav Rangarajan Neal Checka Trevor Darrell Audiovisual Arrays for Untethered Spoken Interfaces. 389-394 2002 conf/icmi/2002 ICMI http://csdl.computer.org/comp/proceedings/icmi/2002/1834/00/18340389abs.htm db/conf/icmi/icmi2002.html#WilsonRCD02