POLULYAKH, E. A.; MAKSYMENKO, S. Foliations with all non-closed leaves on non-compact surfaces. Methods of Functional Analysis and Topology, [S. l.], v. 22, n. 3, p. 266–282, 2016. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/641. Acesso em: 16 dec. 2025.