$(\mu_1, \mu_2)-$Pseudo almost automorphic solutions of fractional order neutral integro-differential equations. Nonlinear Studies, [S. l.], v. 24, n. 3, 2017. Disponível em: https://nonlinearstudies.com/index.php/nonlinear/article/view/1346. Acesso em: 11 oct. 2025.