To cite combreg in publications, please cite the method paper:

  Zheng Y, Ghosh M, Duan L (2026). “Statistical Modeling of
  Combinatorial Response Data.” _Journal of the American Statistical
  Association_. doi:10.1080/01621459.2026.2714575
  <https://doi.org/10.1080/01621459.2026.2714575>. Advance online
  publication.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Statistical Modeling of Combinatorial Response Data},
    author = {Yu Zheng and Malay Ghosh and Leo Duan},
    journal = {Journal of the American Statistical Association},
    year = {2026},
    doi = {10.1080/01621459.2026.2714575},
    note = {Advance online publication},
  }