MAKHNEI, O.V. Boundary problem for the singular heat equation. Carpathian Mathematical Publications, [S. l.], v. 9, n. 1, p. 86–91, 2017. DOI: 10.15330/cmp.9.1.86-91. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/1450. Acesso em: 23 may. 2024.