VOLKOV, Yu. S. Interpolation by Splines of Even Degree According to Subbotin and Marsden. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 66, n. 7, p. 891–908, 2014. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2187. Acesso em: 6 dec. 2025.