Comparative Analysis of Analytical Solutions for Seepage Flow Derivatives in 4D Porous Media. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 18, n. 1, p. 5685, 2025. DOI: 10.29020/nybg.ejpam.v18i1.5685. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/5685. Acesso em: 23 jun. 2025.