SYTOVA, S. On numerical methods for one problem of mixed type. Mathematical Modelling and Analysis, [S. l.], v. 6, n. 2, p. 321–326, 2001. DOI: 10.3846/13926292.2001.9637171. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/9922. Acesso em: 17 may. 2025.