KITAZAWA, N. Real algebraic functions on closed manifolds whose Reeb graphs are given graphs. Methods of Functional Analysis and Topology, [S. l.], v. 28, n. 4, p. 302–308, 2022. DOI: https://doi.org/10.31392/MFAT-npu26_4.2022.03. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/840. Acesso em: 15 dec. 2025.