1. Alexander, C., Ishikawa, S., et al.: A Pattern Language. Oxford University Press, New York (1977)
2. Barros, A.P., Dumas, M., et al.: Service Interaction Patterns: Towards a Reference Framework for Service-based Business Process Interconnection (2005)
3. Barros, O.H.: Business Information System Design Based on Process Pattern and Frameworks. Industrial Engineering Department, University of Chile (2004),
http://www.BPtrends.com
4. Biuk-Aghai, R., Simoff, S.J., et al.: From Ad-hoc to Engineered Collaboration in Virtual Workspaces. In: Eleventh Americas Conference on Information Systems, Omaha, NE, USA (2005)
5. Biuk-Aghai, R.P.: An Information Model of Virtual Collaboration. In: Proceedings of the 2003 IEEE International Conference on Information Reuse and Integration, Las Vegas, Nevada, USA. IEEE SMC, Los Alamitos (2003)