Zamar, David, Brad McNeney, and Jinko Graham. “Elrm: Software Implementing Exact-Like Inference for Logistic Regression Models”. Journal of Statistical Software 21, no. 3 (October 8, 2007): 1–18. Accessed April 24, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v021i03.