@inproceedings{efficientdiscoveryofoverlapping,
  title = {Efficient discovery of overlapping communities in massive networks},
  author = {Prem K. Gopalan and David M. Blei},
  year = {2013},
  booktitle = {PNAS 2013 2013 9},
  url = {https://www.pnas.org/content/110/36/14534},
}