NADJAFIKHAH *, M. .; HAMEDI MOBARRA , L. . Majors About the New Symmetry of a Nonlinear Acoustics Model: New Symmetry. Hyperscience International Journal, [S. l.], v. 2, n. 1, p. 1–6, 2022. DOI: 10.55672/hij2022pp1-6. Disponível em: https://hscience.org/index.php/hij/article/view/11. Acesso em: 29 feb. 2024.