@article{palla2005uncovering,
  title={Uncovering the overlapping community structure of complex networks in nature and society},
  author={Palla, Gergely and Der{\'e}nyi, Imre and Farkas, Ill{\'e}s and Vicsek, Tam{\'a}s},
  journal={Nature},
  volume={435},
  number={7043},
  pages={814--818},
  year={2005},
  publisher={Nature Publishing Group}
}