Fourth Order Functional Differential Equations of Neutral Type: Enhanced Oscillation Theorems. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 18, n. 1, p. 5729, 2025. DOI: 10.29020/nybg.ejpam.v18i1.5729. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/5729. Acesso em: 6 feb. 2025.