BALATTA, S. A. .; HASHIM, I. .; ISMAIL, E. S. .; BAZIGHIFAN, O. .; MOMANI, S. . Fourth-Order Delay Differential Equations: New Monotonic Properties of Solutions. Contemporary Mathematics, [S. l.], v. 6, n. 1, p. 1239–1254, 2025. DOI: 10.37256/cm.6120255413. Disponível em: https://ojs.wiserpub.com/index.php/CM/article/view/5413. Acesso em: 23 feb. 2025.