@article{li2013ToN,
  title={Random Walks and Green's Function on Digraphs: A Framework for Estimating Wireless Transmission Costs},
  author={Yanhua Li and Zhi-Li Zhang},
  journal={IEEE/ACM Transactions on Networking},
  volume={21},
  number={1},
  pages={135--148},
  year={2013},
  publisher={IEEE}
}