To cite the ISS package in publications use:

Müller MM, Reeve HWJ, Cannings TI, Samworth RJ (2023). “Isotonic subgroup selection.” arXiv preprint arXiv:2305.04852v2.

Corresponding BibTeX entry:

  @Article{,
    title = {Isotonic subgroup selection},
    author = {Manuel M. Müller and Henry W. J. Reeve and Timothy I.
      Cannings and Richard J. Samworth},
    year = {2023},
    journal = {arXiv preprint arXiv:2305.04852v2},
  }