Blot, J., D. Pennequin, and G. M. N‘Gu´er´ekata. “Existence and Uniqueness of Pseudo Almost Automorphic Solutions to Some Classes of Partial Evolution Equations”. CUBO, A Mathematical Journal, vol. 10, no. 3, Oct. 2008, pp. 161–170, https://cubo.ufro.cl/ojs/index.php/cubo/article/view/1508.