@article{detectingoverlappingcommunitiesinnetwork,
  title = {Detecting Overlapping Communities in Networks Using Spectral Methods},
  author = {Yuan Zhang and Elizaveta Levina and Ji Zhu},
  year = {2014},
  eprint = {1412.3432},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1412.3432v4},
}