@article{localsearchyieldsaptasforkmeansin,
  title = {Local Search Yields a PTAS for k-Means in Doubling Metrics},
  author = {Zachary Friggstad and Mohsen Rezapour and Mohammad R. Salavatipour},
  year = {2016},
  eprint = {1603.08976},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1603.08976v2},
}