Ezzinbi, Khalil, Valerie Nelson, and Gaston N‘Gu´er´ekata. “𝐶⁽ⁿ⁾-Almost Automorphic Solutions of Some Nonautonomous Differential Equations”. CUBO, A Mathematical Journal 10, no. 2 (July 1, 2008): 61–74. Accessed November 2, 2025. https://cubo.ufro.cl/index.php/cubo/article/view/1516.