Solving Nonlinear Second Order Delay Eigenvalue Problems by Least Square Method. Ibn AL-Haitham Journal For Pure and Applied Sciences, [S. l.], v. 33, n. 4, p. 59–64, 2020. DOI: 10.30526/33.4.2509. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/2509.. Acesso em: 3 may. 2024.