MINENKO, A. S. Analyticity of a free boundary in one problem of axisymmetric flow. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 50, n. 12, p. 1692–1700, 1998. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4789. Acesso em: 27 apr. 2025.