Rusch T, Mair P (2024). _cops: Cluster Optimized Proximity Scaling_. R
package version 1.14-1,
<https://r-forge.r-project.org/projects/stops/>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {cops: Cluster Optimized Proximity Scaling},
    author = {Thomas Rusch and Patrick Mair},
    year = {2024},
    note = {R package version 1.14-1},
    url = {https://r-forge.r-project.org/projects/stops/},
  }

Rusch T, Mair P, Hornik K (2021). “Cluster Optimized Proximity
Scaling.” _Journal of Computational and Graphical Statistics_,
1156-1167. doi:10.1080/10618600.2020.1869027
<https://doi.org/10.1080/10618600.2020.1869027>.

A BibTeX entry for LaTeX users is

  @Article{,
    author = {Thomas Rusch and Patrick Mair and Kurt Hornik},
    title = {Cluster Optimized Proximity Scaling},
    journal = {Journal of Computational and Graphical Statistics},
    year = {2021},
    number = {30},
    issue = {4},
    pages = {1156-1167},
    doi = {10.1080/10618600.2020.1869027},
  }

If powerStressMin() is used, please cite:

  de Leeuw J, Groenen P, Mair P (2016). “Minimizing rstress using
  majorization.” UCLA, Los Angeles. <https://rpubs.com/deleeuw/142619>.

A BibTeX entry for LaTeX users is

  @TechReport{,
    author = {Jan {de Leeuw} and Patrick Groenen and Patrick Mair},
    title = {Minimizing rstress using majorization},
    address = {Los Angeles},
    institution = {UCLA},
    series = {UCLA Statistics Preprint Series},
    year = {2016},
    url = {https://rpubs.com/deleeuw/142619},
  }