To cite package ‘robustsur’ in publications use:

Agostinelli C, Saraceno G (2025). robustsur: Robust Estimation for Seemingly Unrelated Regression Models. R package version 0.0-8, https://CRAN.R-project.org/package=robustsur.

Corresponding BibTeX entry:

  @Manual{,
    title = {robustsur: Robust Estimation for Seemingly Unrelated
      Regression Models},
    author = {Claudio Agostinelli and Giovanni Saraceno},
    year = {2025},
    note = {R package version 0.0-8},
    url = {https://CRAN.R-project.org/package=robustsur},
  }