To cite basket in publications use:

Kane MJ, Chen N, Kaizer AM, Jiang X, Xia HA, Hobbs BP (2021). “Analyzing Basket Trials under Multisource Exchangeability Assumptions.” The R Journal, 12(2), 342–358. doi: 10.32614/RJ-2021-020, https://journal.r-project.org/archive/2021/RJ-2021-020/RJ-2021-020.pdf.

Corresponding BibTeX entry:

  @Article{,
    title = {{Analyzing Basket Trials under Multisource Exchangeability
      Assumptions}},
    author = {Michael J. Kane and Nan Chen and Alexander M. Kaizer and
      Xun Jiang and H. Amy Xia and Brian P. Hobbs},
    journal = {{The R Journal}},
    year = {2021},
    volume = {12},
    number = {2},
    pages = {342--358},
    url =
      {https://journal.r-project.org/archive/2021/RJ-2021-020/RJ-2021-020.pdf},
    doi = {10.32614/RJ-2021-020},
  }