@article{guimera2002ssc,
  author = {Guimera, R. and Danon, L. and D{\i}az-Guilera, A. and Giralt, F. and Arenas, A.},
  interhash = {8f8a7c27070042c97e36d724ecc0b4f9},
  intrahash = {e233164f317dc746da7e7797781cd097},
  journal = {Arxiv preprint cond-mat/0211498},
  title = {{Self-similar community structure in organisations}},
  year = 2002
}

@article{PhysRevLett.100.118703,
  author = {Leicht, E. A. and Newman, M. E. J.},
  doi = {10.1103/PhysRevLett.100.118703},
  interhash = {825411a28bde71cda1c9087fc329d963},
  intrahash = {93726cc0540f75ee1cb515b2923d69e8},
  journal = {Phys. Rev. Lett.},
  month = mar,
  number = 11,
  numpages = {4},
  pages = 118703,
  publisher = {American Physical Society},
  title = {Community Structure in Directed Networks},
  url = {http://prl.aps.org/abstract/PRL/v100/i11/e118703},
  volume = 100,
  year = 2008
}