To cite statistics-bootstrap in publications use:

  Penn, Andrew Charles. (2020). iboot: Iterated bootstrap for small samples 
  or samples with complex dependence structures. Zenodo.
  https://doi.org/10.5281/zenodo.3992392

A BibTeX entry for LaTeX users is:

  @manual{,
    title     = {{iboot}: Iterated bootstrap for small samples 
  or samples with complex dependence structures},
    author    = {Andrew C. Penn},
    year      = {2020},
    doi       = {10.5281/zenodo.3992392}
  }
