To cite package ROptEst in publications use:

Kohl M, Ruckdeschel P (2025). ROptEst: Optimally robust estimation. R package version 1.3.5, https://r-forge.r-project.org/projects/robast/.

Corresponding BibTeX entry:

  @Manual{,
    title = {ROptEst: Optimally robust estimation},
    author = {Matthias Kohl and Peter Ruckdeschel},
    language = {English},
    year = {2025},
    note = {R package version 1.3.5},
    type = {R package},
    url = {https://r-forge.r-project.org/projects/robast/},
  }