@article{certifiablypolynomialalgorithmforbest,
  title = {A Splicing Approach to Best Subset of Groups Selection},
  author = {Yanhang Zhang and Junxian Zhu and Jin Zhu and Xueqin Wang},
  year = {2021},
  eprint = {2104.12576},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2104.12576v3},
}