To cite package ‘PPQplan’ in publications use:

Zhu Y (2021). PPQplan: Process Performance Qualification (PPQ) Plans in Chemistry, Manufacturing and Controls (CMC) Statistical Analysis. R package version 1.1.0, https://github.com/allenzhuaz/ppqplan.

Corresponding BibTeX entry:

  @Manual{,
    title = {PPQplan: Process Performance Qualification (PPQ) Plans in
      Chemistry, Manufacturing and Controls (CMC) Statistical
      Analysis},
    author = {Yalin Zhu},
    year = {2021},
    note = {R package version 1.1.0},
    url = {https://github.com/allenzhuaz/ppqplan},
  }