Brechmann, Eike Christian, and Ulf Schepsmeier. “Modeling Dependence With C- and D-Vine Copulas: The R Package CDVine”. Journal of Statistical Software 52, no. 3 (February 2, 2013): 1–27. Accessed March 29, 2024. https://www.jstatsoft.org/index.php/jss/article/view/v052i03.