Schoonees PC (2015). cds: Constrained Dual Scaling for Detecting Response Styles. R package version 1.0.2, http://CRAN.R-project.org/package=cds.

Corresponding BibTeX entry:

  @Manual{,
    title = {{cds}: Constrained Dual Scaling for Detecting Response
      Styles},
    author = {Pieter C. Schoonees},
    year = {2015},
    note = {R package version 1.0.2},
    url = {http://CRAN.R-project.org/package=cds},
  }