To cite topmodels in publications use:

  Zeileis A, Lang MN, Stauffer R (2024). _topmodels: Infrastructure for
  Forecasting and Assessment of Probabilistic Models_. R package
  version 0.3-0, <https://R-Forge.R-project.org/projects/topmodels/>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {{topmodels}: Infrastructure for Forecasting and Assessment of Probabilistic Models},
    author = {Achim Zeileis and Moritz N. Lang and Reto Stauffer},
    year = {2024},
    note = {R package version 0.3-0},
    url = {https://R-Forge.R-project.org/projects/topmodels/},
  }