To cite package ‘gravityGE’ in publications use:

  Nava N, Ivanic M (2025). _gravityGE: One Sector Armington-CES Gravity
  Model with General Equilibrium_. R package version 1.0.0,
  <https://CRAN.R-project.org/package=gravityGE>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {gravityGE: One Sector Armington-CES Gravity Model with General Equilibrium},
    author = {Noé J Nava and Maros Ivanic},
    year = {2025},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=gravityGE},
  }