Afzal Ballim Jean-Cédric Chappelier Martin Rajman Vincenzo Pallotta ISIS: Interaction through Speech with Information Systems. 365 2000 conf/nldb/2000 NLDB http://link.springer.de/link/service/series/0558/bibs/1959/19590365.htm db/conf/nldb/nldb2000.html#BallimCRP00