Oscillatory Properties Test for Even-Order Di§erential Equations of Neutral type. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 16, n. 4, p. 2499–2508, 2023. DOI: 10.29020/nybg.ejpam.v16i4.4945. Disponível em: https://ejpam.com/index.php/ejpam/article/view/4945.. Acesso em: 3 jul. 2024.