Publications
Hofreiter, B., Huemer, C., Winiwarter, W. (2005) Business Collaboration Models and their Business Context-dependent BPSS Implementations, International Journal of Web Information Systems (IJWIS), 0-.
Hofreiter, B., Huemer, C., Winiwarter, W. (2004) OCL-Constraints for UMM Business Collaborations, 5th International Conference on Electronic Commerce and Web Technologies: (EC-Web 2004).
Gratzer, M., Werthner, H., Winiwarter, W. (2004) Electronic Business in Tourism, International Journal of Electronic Business (IJEB), 5/2-.