To cite package ‘smacofx’ in publications use:

Rusch T, de Leeuw J, Chen L, Mair P (2026). smacofx: Flexible Multidimensional Scaling and 'smacof' Extensions. R package version 1.23-0, https://r-forge.r-project.org/projects/stops.

Corresponding BibTeX entry:

  @Manual{,
    title = {smacofx: Flexible Multidimensional Scaling and 'smacof'
      Extensions},
    author = {Thomas Rusch and Jan {de Leeuw} and Lisha Chen and
      Patrick Mair},
    year = {2026},
    note = {R package version 1.23-0},
    url = {https://r-forge.r-project.org/projects/stops},
  }