LUCHKO, V. M.; MATYCHUK, M. I. Cauchy problem for parabolic systems with pulse action. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 58, n. 11, p. 1525–1535, 2006. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3552. Acesso em: 5 dec. 2025.