To cite package ‘interim’ in publications use:

Becker B, Mueller K, Kulmann H (2019). interim: Scheduling Interim Analyses in Clinical Trials. R package version 0.8.0, https://CRAN.R-project.org/package=interim.

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

Corresponding BibTeX entry:

  @Manual{,
    title = {interim: Scheduling Interim Analyses in Clinical Trials},
    author = {Bastian Becker and Katharina Mueller and Hermann
      Kulmann},
    year = {2019},
    note = {R package version 0.8.0},
    url = {https://CRAN.R-project.org/package=interim},
  }