ASHYRALYEV, A. On the problem of determining the parameter of a parabolic equation. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 62, n. 9, p. 1200–1210, 2010. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2948. Acesso em: 5 dec. 2025.