JOSSE, A.; PÈNE, F. On the class of caustics by reflection of planar curves. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 14, n. 3, p. 881-906, 2015. DOI: 10.2422/2036-2145.201304_003. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/395. Acesso em: 20 feb. 2026.