Transforming business process models in the presence of irreducibility and concurrency

@article{Zhao2007TransformingBP,
  title={Transforming business process models in the presence of irreducibility and concurrency},
  author={Wei Zhao and Barrett R. Bryant and Fei Cao and Rainer Hauser and Kamal Bhattacharya and Tao Tao},
  journal={IJBPIM},
  year={2007},
  volume={2},
  pages={37-48}
}