To cite package ‘REXoplanets’ in publications use:

  Kołomański J, Kołomański M (2025). _REXoplanets: Creates Interface
  with NASA 'Exoplanets Archive API'_. R package version 0.1.2,
  <https://github.com/jkolomanski/rexoplanets>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {REXoplanets: Creates Interface with NASA 'Exoplanets Archive API'},
    author = {Jakub Kołomański and Mateusz Kołomański},
    year = {2025},
    note = {R package version 0.1.2},
    url = {https://github.com/jkolomanski/rexoplanets},
  }