@article{subsetselectioninsparsematrices,
  title = {Subset selection in sparse matrices},
  author = {Alberto Del Pia and Santanu S. Dey and Robert Weismantel},
  year = {2018},
  eprint = {1810.02757},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1810.02757v2},
}