De Nicolò, Silvia, and Aldo Gardini. “The R Package Tipsae: Tools for Mapping Proportions and Indicators on the Unit Interval”. Journal of Statistical Software 108, no. 1 (March 27, 2024): 1–36. Accessed May 9, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v108i01.