BEREZOVSKY, A. A.; MITROPOLSKIY, Yu. A.; NETESOVA, T. M. On One Nonlocal Problem with Free Boundary. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 7, p. 908–918, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4312. Acesso em: 5 dec. 2025.