@article{JMLR:v20:18-616,
  author  = {Andrew Cotter and Heinrich Jiang and Maya Gupta and Serena Wang and Taman Narayan and Seungil You and Karthik Sridharan},
  title   = {Optimization with Non-Differentiable Constraints with Applications to Fairness, Recall, Churn, and Other Goals},
  journal = {Journal of Machine Learning Research},
  year    = {2019},
  volume  = {20},
  number  = {172},
  pages   = {1--59},
  url     = {http://jmlr.org/papers/v20/18-616.html}
}