The package logo in man/figures/logo.png is original artwork by
Seo-young Silvia Kim.

The files man/figures/AtsusakaKimFigA1.jpg and
man/figures/AtsusakaKimFigB2.jpg reproduce figures from:

  Atsusaka, Yuki, and Seo-young Silvia Kim. 2025.
  "Addressing Measurement Errors in Ranking Questions for the Social
  Sciences." Political Analysis 33(4): 339-360.
  https://doi.org/10.1017/pan.2024.33

These figures are included with attribution to the original article.
They are reproduced under the article's Creative Commons Attribution
4.0 International (CC BY 4.0) license.