Craig H. Ganoe Jacob P. Somervell Dennis C. Neale Philip L. Isenhour John M. Carroll Mary Beth Rosson D. Scott McCrickard Classroom BRIDGE: using collaborative public and desktop timelines to support activity awareness. 21-30 2003 conf/uist/2003 UIST http://doi.acm.org/10.1145/964696.964699 db/conf/uist/uist2003.html#GanoeSNICRM03