ZNOJIL, M. Rectifiable PT -symmetric Quantum Toboggans with Two Branch Points. Acta Polytechnica, Prague, Czech Republic, v. 50, n. 5, 2010. DOI: 10.14311/1277. Disponível em: https://ojs.cvut.cz/ojs/index.php/ap/article/view/1277. Acesso em: 22 jan. 2025.