@article{datastabilityinclusteringacloserlook,
  title = {Data Stability in Clustering: A Closer Look},
  author = {Shalev Ben-David and Lev Reyzin},
  year = {2011},
  eprint = {1107.2379},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1107.2379v5},
}