$C^2$ Continuous Quartic Hermite Spline Curves with Shape Parameters. Communications in Mathematical Research, [S. l.], v. 33, n. 3, p. 193–204, 2019. DOI: 10.13447/j.1674-5647.2017.03.01. Disponível em: https://global-sci.com/index.php/cmr/article/view/8927. Acesso em: 5 dec. 2025.