@inproceedings{betterapproximationandfasteralgorithm,
  title = {Better Approximation and Faster Algorithm Using the Proximal Average},
  author = {Yao-Liang Yu},
  year = {2013},
  booktitle = {NeurIPS 2013 12},
  url = {http://papers.nips.cc/paper/4934-better-approximation-and-faster-algorithm-using-the-proximal-average},
}