Benoît Otjacques Monique Noirhomme-Fraiture Xavier Gobert Fernand Feltz Cooperation Indexes to Support Workspace Awareness. 94-101 2006 conf/criwg/2006 CRIWG http://dx.doi.org/10.1007/11853862_8 db/conf/criwg/criwg2006.html#OtjacquesNGF06