To cite package ‘DOS2’ in publications use:

  Rosenbaum PR (2019). _DOS2: Design of Observational Studies,
  Companion to the Second Edition_. R package version 0.5.2,
  <https://CRAN.R-project.org/package=DOS2>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {DOS2: Design of Observational Studies, Companion to the Second Edition},
    author = {Paul R. Rosenbaum},
    year = {2019},
    note = {R package version 0.5.2},
    url = {https://CRAN.R-project.org/package=DOS2},
  }

ATTENTION: This citation information has been auto-generated from the
package DESCRIPTION file and may need manual editing, see
‘help("citation")’.