Approximated Methods for Linear Delay Differential Equations Using Weighted Residual Methods. Baghdad Science Journal, Iraq, Baghdad, v. 4, n. 4, p. 658–665, 2007. DOI: 10.21123/bsj.2007.4.4.658-665. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/851.. Acesso em: 21 dec. 2024.