ANDRUSYAK, R. V.; BURDEINA, N. O.; KIRILICH, V. M. Classical solvability of a problem with moving boundaries for a hyperbolic system of quasilinear equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 61, n. 7, p. 867–891, 2009. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3064. Acesso em: 5 dec. 2025.