Peeters, Carel F. W., Anders Ellern Bilgrau, and Wessel N. van Wieringen. “rags2ridges: A One-Stop-ℓ2-Shop for Graphical Modeling of High-Dimensional Precision Matrices”. Journal of Statistical Software 102, no. 4 (May 2, 2022): 1–32. Accessed May 26, 2022. https://www.jstatsoft.org/index.php/jss/article/view/v102i04.