To cite package ‘MRTSampleSize’ in publications use:

Liao P, Huang L, Seewald N, Sun J (2020). MRTSampleSize: A Sample Size Calculator for Micro-Randomized Trials. R package version 0.3.0, https://CRAN.R-project.org/package=MRTSampleSize.

Corresponding BibTeX entry:

  @Manual{,
    title = {MRTSampleSize: A Sample Size Calculator for
      Micro-Randomized Trials},
    author = {Peng Liao and Liying Huang and Nicholas J. Seewald and Ji
      Sun},
    year = {2020},
    note = {R package version 0.3.0},
    url = {https://CRAN.R-project.org/package=MRTSampleSize},
  }