IVANCHOV, N. I.; SALDINA, N. V. Inverse problem for the heat equation with degeneration. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 57, n. 11, p. 1563–1570, 2005. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3708. Acesso em: 27 apr. 2025.