1. Workflow Management: Models, Methods, and Systems;van der Aalst,2002
2. The Unified Modeling Language User Guide;Booch,2005
3. IHE: a model for driving adoption of standards;Carr;Computerized Medical Imaging and Graphics,2002
4. Initial Work in the Design and Development of Verifiable Workflow Management Systems and Some Applications to Health Care;Dallien,2008