@article{mones2014shock,
  title={Shock waves on complex networks},
  author={Enys Mones, and Nuno A. M. Araújo, and Tamás Vicsek, and Hans J. Herrmann},
  year={2014},
  journal={Scientific Reports},
  volume={4},
  number={4949},
url = {http://arxiv.org/abs/1402.4302},
}