GHAZARYAN, Haik. The Newton Polyhedron, Spaces of Differentiable Functions and General Theory of Differential Equations. Armenian Journal of Mathematics, Yerevan, Armenia, v. 9, n. 2, p. 102–145, 2017. Disponível em: https://armjmath.sci.am/index.php/ajm/article/view/132. Acesso em: 3 apr. 2025.