@article{efficientadjustmentsetsincausalgraphical,
  title = {Efficient adjustment sets in causal graphical models with hidden variables},
  author = {Ezequiel Smucler and Facundo Sapienza and Andrea Rotnitzky},
  year = {2020},
  eprint = {2004.10521},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2004.10521v3},
}