VRABEL, Robert. Estimation of turning point location of convex solutions for nonlinear second-order differential equations. Mathematical Modelling and Analysis, [S. l.], v. 17, n. 5, p. 642–649, 2012. DOI: 10.3846/13926292.2012.734865. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/4900. Acesso em: 2 jun. 2025.