Direct Method for Variational Problems Using Boubaker Wavelets. Ibn AL-Haitham Journal For Pure and Applied Sciences, [S. l.], v. 36, n. 3, p. 427–436, 2023. DOI: 10.30526/36.3.3048. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/3048.. Acesso em: 16 jul. 2024.