@article{apowerfulsubvectorandersonrubintestin,
  title = {A Powerful Subvector Anderson Rubin Test in Linear Instrumental Variables Regression with Conditional Heteroskedasticity},
  author = {Patrik Guggenberger and Frank Kleibergen and Sophocles Mavroeidis},
  year = {2021},
  eprint = {2103.11371},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2103.11371v4},
}