@article{exactsparseorthogonaldictionarylearning,
  title = {Exact Sparse Orthogonal Dictionary Learning},
  author = {Kai Liu and Yongjian Zhao and Hua Wang},
  year = {2021},
  eprint = {2103.09085},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2103.09085v3},
}