David Sun and Steven Xia and Chengzheng Sun and David ChenCSCW '04: Proceedings of the 2004 ACM conference on Computer supported cooperative work, page 437-446. New York, NY, USA, ACM Press, (2004)
Christine M. Neuwirth and David S. Kaufer and Ravinder Chandhok and James H. MorrisCSCW '94: Proceedings of the 1994 ACM conference on Computer supported cooperative work, page 145-152. New York, NY, USA, ACM Press, (1994)
J. J. Cadiz and Anop Gupta and Jonathan GrudinCSCW '00: Proceedings of the 2000 ACM conference on Computer supported cooperative work, page 309-318. New York, NY, USA, ACM Press, (2000)
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