ABDELKARIM, Adel A. Near-Legendre Differential Equations. Journal of Kufa for Mathematics and Computer, [S. l.], v. 5, n. 3, p. 17–26, 2019. DOI: 10.31642/JoKMC/2018/050303. Disponível em: https://journal.uokufa.edu.iq/index.php/jkmc/article/view/2084. Acesso em: 19 may. 2024.