Sax, Christoph, and Dirk Eddelbuettel. “Seasonal Adjustment by X-13ARIMA-SEATS in R”. Journal of Statistical Software 87, no. 11 (December 20, 2018): 1–17. Accessed May 23, 2022. https://www.jstatsoft.org/index.php/jss/article/view/v087i11.