@article{improvedgraphclustering,
  title = {Improved Graph Clustering},
  author = {Yudong Chen and Sujay Sanghavi and Huan Xu},
  year = {2012},
  eprint = {1210.3335},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1210.3335v3},
}