ARSLAN, Derya. A new second-order difference approximation for nonlocal boundary value problem with boundary layers. Mathematical Modelling and Analysis, [S. l.], v. 25, n. 2, p. 257–270, 2020. DOI: 10.3846/mma.2020.9824. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/9824. Acesso em: 9 may. 2025.