To cite package ‘stgam’ in publications use:

  Comber L (2024). _stgam: Spatially and Temporally Varying Coefficient
  Models Using Generalized Additive Models_. R package version 0.0.1.2,
  <https://CRAN.R-project.org/package=stgam>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {stgam: Spatially and Temporally Varying Coefficient Models Using
Generalized Additive Models},
    author = {Lex Comber},
    year = {2024},
    note = {R package version 0.0.1.2},
    url = {https://CRAN.R-project.org/package=stgam},
  }