AL-NASSAR, Samar kadhum. Lie Symmetries and Partial Differential Equations(PDEs). University of Thi-Qar Journal, [S. l.], v. 11, n. 4, p. 80_89, 2019. Disponível em: https://jutq.utq.edu.iq/index.php/main/article/view/64. Acesso em: 9 oct. 2025.