CIRULIS, T.; LIETUVIETIS, O. Degenerate matrix method with Chebyshev nodes for solving nonlinear systems of differential equations. Mathematical Modelling and Analysis, [S. l.], v. 4, n. 1, p. 51–57, 1999. DOI: 10.3846/13926292.1999.9637110. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/9969. Acesso em: 10 may. 2025.