Bica, Alexandru Mihai, and Diana Curilă (Popescu). “The Akima’s Fitting Method for Quartic Splines”. J. Numer. Anal. Approx. Theory 51, no. 2 (December 31, 2022): 155–166. Accessed April 20, 2024. https://ictp.acad.ro/jnaat/journal/article/view/1278.