@article{imagereconstructionfromsparsitytodata,
  title = {Image Reconstruction: From Sparsity to Data-adaptive Methods and Machine Learning},
  author = {Saiprasad Ravishankar and Jong Chul Ye and Jeffrey A. Fessler},
  year = {2019},
  eprint = {1904.02816},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1904.02816v3},
}