FRĄCZEK, K. On resonant energy sets for Hamiltonian systems with reflections. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], p. 38, 2026. DOI: 10.2422/2036-2145.202410_019. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/7374. Acesso em: 30 aug. 2026.