Analytic Regularity for a Singularly Perturbed Reaction-Convection-Diffusion Boundary Value Problem with Two Small Parameters. Communications in Mathematical Research, [S. l.], v. 40, n. 2, p. 125–153, 2024. DOI: 10.4208/cmr.2023-0025. Disponível em: https://www.global-sci.com/index.php/cmr/article/view/9122. Acesso em: 6 dec. 2025.