On Sufficient Conditions for Optimality in the Minimum Frequency Maximization Problem for a Shell of Revolution at a Given Weight. Advances in Systems Science and Applications, [S. l.], v. 26, n. 1, p. 66–75, 2026. DOI: 10.25728/assa.2026.26.1.2117. Disponível em: https://ijassa.ipu.ru/index.php/ijassa/article/view/2117. Acesso em: 27 jul. 2026.