ZNOJIL, M. Non-Hermitian Star-shaped Quantum Graphs. Acta Polytechnica, [S. l.], v. 53, n. 3, 2013. DOI: 10.14311/1819. Disponível em: https://ojs.cvut.cz/ojs/index.php/ap/article/view/1819. Acesso em: 4 may. 2024.