@article{betweenhardandsoftthresholdingoptimal,
  title = {Between hard and soft thresholding: optimal iterative thresholding algorithms},
  author = {Haoyang Liu and Rina Foygel Barber},
  year = {2018},
  eprint = {1804.08841},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1804.08841v4},
}