1. Fleurke, M.: JBees, an adaptive workflow management system – an approach based on Petri nets and agents, Master’s thesis, Department of Computer Science, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands (2004)
2. Fleurke, M., Ehrler, L., Purvis, M.: JBees - an adaptive and distributed framework for workflow systems. In: Ghorbani, A., Marsh, S. (eds.) Workshop on Collaboration Agents: Autonomous Agents for Collaborative Environments (COLA), Halifax, Canada, pp. 69–76. National Research Council Canada, Institute for Information Technology (2003), http://www.cs.unb.ca/~ghorbani/cola/proceedings/NRC-46519.pdf
3. Free Software Foundation. GNU Lesser General Public License (2000)
4. Meilin, S., Guangxin, Y., Yong, X., Shangguang, W.: Workflow Management Systems: A Survey. In: Proceedings of IEEE International Conference on Communication Technology (1998)
5. Mariusz Nowostawski. JFern – Java based Petri Net framework (2003)