Refined monotonicity-based approach to oscillation in second-order half-linear delay differential equations. Gulf Journal of Mathematics, [S. l.], v. 22, n. 1, p. 1–11, 2026. DOI: 10.56947/gjom.v22i1.3750. Disponível em: https://gjom.org/index.php/gjom/article/view/3750. Acesso em: 25 aug. 2026.