To cite package ‘snSMART’ in publications use:

  Wang S, Kidwell K (2024). _snSMART: Small N Sequential Multiple
  Assignment Randomized Trial Methods_. R package version 0.2.4,
  <https://CRAN.R-project.org/package=snSMART>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {snSMART: Small N Sequential Multiple Assignment Randomized Trial Methods},
    author = {Sidi Wang and Kelley Kidwell},
    year = {2024},
    note = {R package version 0.2.4},
    url = {https://CRAN.R-project.org/package=snSMART},
  }