@article{JMLR:v19:13-538,
  author  = {Alvaro Barbero and Suvrit Sra},
  title   = {Modular Proximal Optimization for Multidimensional Total-Variation Regularization},
  journal = {Journal of Machine Learning Research},
  year    = {2018},
  volume  = {19},
  number  = {56},
  pages   = {1--82},
  url     = {http://jmlr.org/papers/v19/13-538.html}
}