ABOOD, H. J. .; HUSSAIN, A. H. . Existence and Uniqueness Linear Partial Differential Equations Depending Initial and Boundary Conditions. Journal of Asian Scientific Research, [S. l.], v. 3, n. 8, p. 786–799, 2013. Disponível em: https://archive.aessweb.com/index.php/5003/article/view/3531. Acesso em: 6 may. 2024.