EYDELMAN, S. D. Some inverse problems for parabolic and elliptic differential-operator equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 45, n. 1, p. 120–127, 1993. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5790. Acesso em: 14 apr. 2025.