Bart Busschots Luke Raeside John G. Keating Shelagh Waddington The VTIE Collaborative Writing Environment. 392-401 2006 conf/webist/2006sp WEBIST (Selected Papers) http://dx.doi.org/10.1007/978-3-540-74063-6_31 db/conf/webist/webist2006sp.html#BusschotsRKW06a