Generalized Quasilinearization Using Coupled Lower and Upper Solutions for Periodic Boundary Value Problem of an Integro Differential Equation. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 12, n. 4, p. 1662–1675, 2019. DOI: 10.29020/nybg.ejpam.v12i4.3529. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/3529.. Acesso em: 28 apr. 2024.