Towards Solving Fractional Order Delay Variational Problems Using Euler Polynomial Operational Matrices. Iraqi Journal of Science, [S. l.], v. 64, n. 9, p. 4693–4703, 2023. DOI: 10.24996/ijs.2023.64.9.32. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9165.. Acesso em: 19 may. 2024.