A Note on the Generalized Carleman Boundary Value Problem for the System with Constant Coefficients of the Class E2. Journal of Partial Differential Equations, [S. l.], v. 2, n. 3, p. 30–38, 1989. Disponível em: https://global-sci.com/index.php/jpde/article/view/3625. Acesso em: 6 dec. 2025.