1. OMG (2006). Business Process Modeling Notation Specification. Version 1.0. February 2006
www.bpmn.org/Documents/OMG%20Final%20Adopted%20BPMN%2010%20Spec%2006-02-01.pdf
2. Sivashanmugam, K., Miller, J., Sheth, A., and Verma, K. (2004). Framework for Semantic Web Process Composition. International Journal of Electronic Commerce, 9(2), 71-106.
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4. Scheer, A.-W., Thomas, O., and Adam, O. (2005). Process Modeling Using Event-Driven Process Chains. In Dumas, M., van der Aalst, W., and ter Hofstede, A.H.M. (eds). Process-Aware Information Systems. Wiley-Interscience, New York, Pages 119-145.
5. IDEF. IDEF0 - Function Modeling Method.
http://www.idef.com/IDEF0.html