Wen, Canhong, Aijun Zhang, Shijie Quan, and Xueqin Wang. “BeSS: An R Package for Best Subset Selection in Linear, Logistic and Cox Proportional Hazards Models”. Journal of Statistical Software 94, no. 4 (June 30, 2020): 1–24. Accessed August 8, 2022. https://www.jstatsoft.org/index.php/jss/article/view/v094i04.