BEREZNYTS'KA, I. B. Determination of the Free Term and Leading Coefficient in a Parabolic Equation. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 55, n. 1, p. 119–125, 2003. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3893. Acesso em: 6 dec. 2025.