Boundary Value Problem For One Class Of Third-Order Equations Of Mixed-Composite Type In A Quadrangular Region. Eurasian Research Bulletin , [S. l.], v. 44, p. 39–42, 2025. Disponível em: https://geniusjournals.org/index.php/erb/article/view/6917. Acesso em: 18 apr. 2026.