Symmetry for Initial Boundary Value Problems of PDEs . Journal of the College of Basic Education, [S. l.], v. 25, n. 105, p. 178–194, 2019. DOI: 10.35950/cbej.v25i105.4762. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/4762.. Acesso em: 14 may. 2025.