BAZALII, B. V. On one proof of the classical solvability of the Hele-Shaw problem with free boundary. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 50, n. 11, p. 1452–1462, 1998. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4797. Acesso em: 14 apr. 2025.