To cite package ‘SOAs’ in publications use:

Groemping U (2025). SOAs: Creation of Stratum Orthogonal Arrays. R package version 1.4-1, https://github.com/bertcarnell/soas.

Corresponding BibTeX entry:

  @Manual{,
    title = {SOAs: Creation of Stratum Orthogonal Arrays},
    author = {Ulrike Groemping},
    year = {2025},
    note = {R package version 1.4-1},
    url = {https://github.com/bertcarnell/soas},
  }