@article{nonsmoothanalysisandsubgradientmethods,
  title = {Nonsmooth Analysis and Subgradient Methods for Averaging in Dynamic Time Warping Spaces},
  author = {David Schultz and Brijnesh Jain},
  year = {2017},
  eprint = {1701.06393},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1701.06393v1},
}