Gregorio Convertino Helena M. Mentis Mary Beth Rosson Aleksandra Slavkovic John M. Carroll Supporting content and process common ground in computer-supported teamwork. 2339-2348 2009 CHI http://doi.acm.org/10.1145/1518701.1519059 conf/chi/2009 db/conf/chi/chi2009.html#ConvertinoMRSC09