Febrero-Bande, Manuel, and Manuel Oviedo de la Fuente. “Statistical Computing in Functional Data Analysis: The R Package fda.Usc”. Journal of Statistical Software 51, no. 4 (October 22, 2012): 1–28. Accessed October 5, 2022. https://www.jstatsoft.org/index.php/jss/article/view/v051i04.