Fractional natural decomposition method for solving fractional system of nonlinear equations of unsteady flow of a polytropic gas. Nonlinear Studies, [S. l.], v. 25, n. 4, 2018. Disponível em: https://www.nonlinearstudies.com/index.php/nonlinear/article/view/1506. Acesso em: 12 oct. 2025.