To cite 'fwildclusterboot' in publications use:

Fischer A, Roodman D (2021). “fwildclusterboot: Fast Wild Cluster Bootstrap Inference for Linear Regression Models (Version 0.3.7).” https://cran.r-project.org/package=fwildclusterboot.

Corresponding BibTeX entry:

  @Misc{,
    title = {fwildclusterboot: Fast Wild Cluster Bootstrap Inference
      for Linear Regression Models (Version 0.3.7)},
    author = {Alexander Fischer and David Roodman},
    year = {2021},
    url = {https://cran.r-project.org/package=fwildclusterboot},
  }