To cite package ‘spass’ in publications use:

Asendorf T, Gera R, Islam S, Harden M, Placzek M (2020). spass: Study Planning and Adaptation of Sample Size. R package version 1.3, https://CRAN.R-project.org/package=spass.

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 = {spass: Study Planning and Adaptation of Sample Size},
    author = {T. Asendorf and R. Gera and S. Islam and M. Harden and M.
      Placzek},
    year = {2020},
    note = {R package version 1.3},
    url = {https://CRAN.R-project.org/package=spass},
  }