@article{robustnessheterogeneoustreatmenteffects,
  title = {Robustness, Heterogeneous Treatment Effects and Covariate Shifts},
  author = {Pietro Emilio Spini},
  year = {2021},
  eprint = {2112.09259},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2112.09259v2},
}