Shou, Yiyun, and Michael Smithson. “Cdfquantreg: An R Package for CDF-Quantile Regression”. Journal of Statistical Software 88, no. 1 (January 29, 2019): 1–30. Accessed March 28, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v088i01.