Non-Classical Elliptic Projections and $L^2$-Error Estimates for Galerkin Methods for Parabolic Integro-Differential Equations. Journal of Computational Mathematics, [S. l.], v. 9, n. 3, p. 238–246, 1991. Disponível em: https://global-sci.com/index.php/JCM/article/view/11033. Acesso em: 5 dec. 2025.