1. Sánchez, M., Villalobos, J.: A flexible architecture to build workflows using aspect-oriented concepts. In: Proceedings of the 2008 AOSD Workshop on Aspect-Oriented Modeling, AOM 2008, pp. 25–30. ACM, New York (2008)
2. Web Services Business ProcessExecution Language, Version 2.0,
http://docs.oasis-open.org/wsbpel/2.0/wsbpel-v2.0.pdf
3. Business Process Modeling Notation, V1.1,
http://www.omg.org/spec/BPMN/1.1/PDF
4. Process Definition Interface – XML Process Definition Language, Version 2.1,
http://www.wfmc.org
5. WS-BPEL Extension for People (BPEL4People), Version 1.0,
http://www.ibm.com/developerworks/webservices/library/specification/ws-bpel4people/