To cite the 'ustats' package in publications, please cite both the paper describing the implemented methods and the package itself:

Chen X, Zhang R, Liu L (2025). “On Computing and the Complexity of Computing Higher-Order U-Statistics, Exactly.” doi:10.48550/arXiv.2508.12627. arXiv preprint arXiv:2508.12627, https://arxiv.org/abs/2508.12627.

Chen X, Zhang R, Liu L (2025). ustats: R Interface to Python Tools for Computing Higher-Order U-Statistics. R package version 0.1.5, https://CRAN.R-project.org/package=ustats.

Corresponding BibTeX entries:

  @Misc{,
    title = {On Computing and the Complexity of Computing Higher-Order
      {U}-Statistics, Exactly},
    author = {Xingyu Chen and Ruiqi Zhang and Lin Liu},
    year = {2025},
    note = {arXiv preprint arXiv:2508.12627},
    doi = {10.48550/arXiv.2508.12627},
    url = {https://arxiv.org/abs/2508.12627},
  }

  @Manual{,
    title = {{ustats}: R Interface to Python Tools for Computing
      Higher-Order U-Statistics},
    author = {Xingyu Chen and Ruiqi Zhang and Lin Liu},
    year = {2025},
    note = {R package version 0.1.5},
    url = {https://CRAN.R-project.org/package=ustats},
  }