@article{ahomotopybasedalgorithmforsparse,
  title = {Matrix-wise $\ell_0$-constrained Sparse Nonnegative Least Squares},
  author = {Nicolas Nadisic and Jeremy E Cohen and Arnaud Vandaele and Nicolas Gillis},
  year = {2020},
  eprint = {2011.11066},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2011.11066v4},
}