BEREZOVSKY, A. A.; MITROPOLSKIY, Yu. A.; SHKHANUKOV-LAFISHEV, M. Kh. Space-time localization in problems with free boundaries for a nonlinear second-order equation. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 48, n. 2, p. 202–211, 1996. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5348. Acesso em: 5 dec. 2025.