Lewis JW, Brown PE, Tsagris M, Ghachem M, Ersan O (2026). skellam: The Skellam Distribution: Densities, Sampling, Estimation and Regression. R package version 0.2.5, https://github.com/monty-se/skellam.

Corresponding BibTeX entry:

  @Manual{,
    title = {{skellam}: The Skellam Distribution: Densities, Sampling,
      Estimation and Regression},
    author = {Jerry W. Lewis and Patrick E. Brown and Michail Tsagris
      and Montasser Ghachem and Oguz Ersan},
    year = {2026},
    note = {R package version 0.2.5},
    url = {https://github.com/monty-se/skellam},
  }