An Alternative Method for Solving Lagrange’s First-Order Partial Differential Equation with Linear Function Coefficients. Journal of Partial Differential Equations, [S. l.], v. 28, n. 3, p. 208–224, 2015. DOI: 10.4208/jpde.v28.n3.2. Disponível em: https://global-sci.com/index.php/jpde/article/view/14955. Acesso em: 6 dec. 2025.