To cite package ‘ROI.plugin.glpk’ in publications use:

  Theussl S (2024). _ROI.plugin.glpk: 'ROI' Plug-in 'GLPK'_. R package
  version 1.0-0, , <https://r-forge.r-project.org/projects/roi>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ROI.plugin.glpk: 'ROI' Plug-in 'GLPK'},
    author = {Stefan Theussl},
    year = {2024},
    note = {R package version 1.0-0, 
},
    url = {https://r-forge.r-project.org/projects/roi},
  }