BARTOSZEWSKI, Zbigniew; BARANOWSKA, Anna. Solving Boundary Value Problems for Second Order Singularly Perturbed Delay Differential Equations by ε-Approximate Fixed-Point Method. Mathematical Modelling and Analysis, [S. l.], v. 20, n. 3, p. 369–381, 2015. DOI: 10.3846/13926292.2015.1048759. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/1007. Acesso em: 9 may. 2025.