Charvat, Hadrien, and Aurélien Belot. “Mexhaz: An R Package for Fitting Flexible Hazard-Based Regression Models for Overall and Excess Mortality With a Random Effect”. Journal of Statistical Software 98, no. 14 (July 12, 2021): 1–36. Accessed April 26, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v098i14.