1. QBP: A Flexible Framework for Querying and Reusing Business Process Models, http://bpmnq.sourceforge.net/
2. Awad, A.: BPMN-Q: A Language to Query Business Processes. In: EMISA (2007)
3. Eshuis, R., Grefen, P.: Structural Matching of BPEL Processes. In: ECOWS (2007)
4. Beeri, C., et al.: Querying Business Processes with BP-QL. In: VLDB (2005)
5. Beeri, C., et al.: Querying Business Processes. In: VLDB (2006)