@article{anempiricalstudyofobstaclepreemptionin,
  title = {An Empirical Study of Obstacle Preemption in the Supreme Court},
  author = {Gregory M. Dickinson},
  year = {2023},
  eprint = {2306.04462},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2306.04462v1},
}