@article{JMLR:v20:18-762,
  author  = {Koulik Khamaru and Martin J. Wainwright},
  title   = {Convergence Guarantees for a Class of Non-convex and Non-smooth Optimization Problems},
  journal = {Journal of Machine Learning Research},
  year    = {2019},
  volume  = {20},
  number  = {154},
  pages   = {1--52},
  url     = {http://jmlr.org/papers/v20/18-762.html}
}