To cite package ‘PND.heter.cluster’ in publications use:

  Liu X (2025). _PND.heter.cluster: Estimating the Cluster Specific
  Treatment Effects in Partially Nested Designs_. R package version
  0.1.0, <https://github.com/xliu12/pnd.heter>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PND.heter.cluster: Estimating the Cluster Specific Treatment Effects in Partially
Nested Designs},
    author = {Xiao Liu},
    year = {2025},
    note = {R package version 0.1.0},
    url = {https://github.com/xliu12/pnd.heter},
  }