@article{JMLR:v23:20-296,
  author  = {Rohit Bhattacharya and Razieh Nabi and Ilya Shpitser},
  title   = {Semiparametric Inference For Causal Effects In Graphical Models With Hidden Variables},
  journal = {Journal of Machine Learning Research},
  year    = {2022},
  volume  = {23},
  number  = {295},
  pages   = {1--76},
  url     = {http://jmlr.org/papers/v23/20-296.html}
}