1. Apache ODE, 2013. URL: http://ode.apache.org/Page visited on February 10th, 2013.
2. BPEL Designer Project, 2013. URL: http://www.eclipse.org/bpel/Page visited on February 10th, 2013.
3. Casati, F., Ceri, S., Paraboschi, S., Pozzi, G., 1999. Specification and implementation of exceptions in workflow management systems. ACM Transactions on Database Systems (TODS), 24(3), 405-451.
4. Christensen, E., Curbera, F., Meredith, G., Weerawarana, S., 2001. Web service definition language. Microsoft, IBM.