MATUS, P. P.; JOVANOVIĆ, B. S. Coefficient stability of operator–difference schemes. Mathematical Modelling and Analysis, [S. l.], v. 4, n. 1, p. 135–146, 1999. DOI: 10.3846/13926292.1999.9637118. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/9977. Acesso em: 9 may. 2025.