@article{clusteringfinancialtimeserieshowlongis,
  title = {Clustering Financial Time Series: How Long is Enough?},
  author = {Gautier Marti and Sébastien Andler and Frank Nielsen and Philippe Donnat},
  year = {2016},
  eprint = {1603.04017},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1603.04017v2},
}