@article{strongcoresetsforhardandsoftbregman,
  title = {Strong Coresets for Hard and Soft Bregman Clustering with Applications to Exponential Family Mixtures},
  author = {Mario Lucic and Olivier Bachem and Andreas Krause},
  year = {2015},
  eprint = {1508.05243},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1508.05243v2},
}