3G Q Huang, J Huang, K L Mak , Agent-based workflow management in collaborative product development on the Internet. Computer- Aided Design, 32(2000) 133-134.
4Wu H, Zhang Z,Cheng F. Collaborative CAD : A Conceptual Model[C]. In :DCNet 98,Sydney,Australia, 1998.
5C Sun et al. Achieving convergence, causality-preservation, and intention--preservation in real-time cooperative editing systems. ACM Transactions on Computer—Human Interaction, Vol. 5, No. 1, pp. 63- 108, March,1998.
9Michael J Muller, Wemer Geyer, Beth Brownholtz,et al.One-hundred days in an activity-centric collaboration environment based on shared objects [C]. CHI'2004. Vienna, Austria: ACM Press, 2004:375-382.
