@article{cj98-03,
  author={Yehuda Afek and Anat Bremler},
  title={Self-Stabilizing Unidirectional Network Algorithms by
  Power Supply},
  journal={Chicago Journal of Theoretical Computer Science},
  volume={1998},
  number={3},
  publisher={MIT Press},
  month={December},
  year={1998}
}