YAMGOUE, Serge Bruno; LEKEUFACK, Olivier Tiokeng; KOFANE, Timoleon Crepin. Harmonic Balance for Non-Periodic Hyperbolic Solutions of Nonlinear Ordinary Differential Equations. Mathematical Modelling and Analysis, [S. l.], v. 22, n. 2, p. 140–156, 2017. DOI: 10.3846/13926292.2017.1276983. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/881. Acesso em: 9 may. 2025.