To cite package ‘sss’ in publications use:

  de Vries A (2024). _sss: Import Files in the Triple-s (Standard
  Survey Structure) Format_. R package version 0.2.2, ,
  <https://github.com/andrie/sss>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {sss: Import Files in the Triple-s (Standard Survey Structure) Format},
    author = {Andrie {de Vries}},
    year = {2024},
    note = {R package version 0.2.2, },
    url = {https://github.com/andrie/sss},
  }