Local and Global Uniqueness Theorems of the N-th Order Partial Differential Equations. Baghdad Science Journal, Iraq, Baghdad, v. 7, n. 1, p. 829–832, 2010. DOI: 10.21123/bsj.2010.7.1.829-832. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2927.. Acesso em: 28 apr. 2024.