HAKK, K. Two‐grid iteration method for weakly singular integral equations. Mathematical Modelling and Analysis, [S. l.], v. 5, n. 1, p. 76–85, 2000. DOI: 10.3846/13926292.2000.9637130. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/9938. Acesso em: 9 may. 2025.