BANI-AHMAD, F.; ALOMARI, A.K.; BATAINEH, A. Sami; SULAIMAN, J.; HASHIM, I. ON THE APPROXIMATE SOLUTIONS OF SYSTEMS OF ODEs BY LEGENDRE OPERATIONAL MATRIX OF DIFFERENTIATION. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 36, p. 483–494, 2016. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6604. Acesso em: 5 sep. 2026.