@article{sparseapproximationviageneratingpoint,
  title = {Sparse Approximation via Generating Point Sets},
  author = {Avrim Blum and Sariel Har-Peled and Benjamin Raichel},
  year = {2015},
  eprint = {1507.02574},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1507.02574v2},
}