Mathematical Eigenfunctions Analysis for 2nd Kind of Fredholm Integral equations. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 16, n. 1, p. 304–313, 2023. DOI: 10.29020/nybg.ejpam.v16i1.4647. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/4647. Acesso em: 25 dec. 2024.