ISARYUK, I. M.; PUKALSKYI, I. D. Boundary-Value Problem with Impulsive Conditions and Degeneration for Parabolic Equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 67, n. 10, p. 1348–1357, 2015. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2071. Acesso em: 5 dec. 2025.