1. Work Group 1. Interface 1: Process Definition Interchange. Workflow Management Coalition, V 1.1 Final(WfMC-TC-1016-P), October 1999.
2. Lect Notes Comput Sci;F. Casati,1995
3. Lect Notes Comput Sci;J. Eder,2000
4. J. Eder, H. Groiss, and W. Liebhart. The Workflow Management System Panta Rhei. In A. Dogac, et.al.(eds.), Advances in Workflow Management Systems and Interoperability, Springer, 1997.
5. J. Eder and W. Liebhart. The Workflow Activity Model WAMO. In Proceedings 3rd International Conference on Cooperative Information Systems (CoopIS), 1995.