@article{robustgroupedvariableselectionusing,
  title = {Robust Grouped Variable Selection Using Distributionally Robust Optimization},
  author = {Ruidi Chen and Ioannis Ch. Paschalidis},
  year = {2020},
  eprint = {2006.06094},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2006.06094v1},
}