DEL MAR GONZÁLEZ, M. .; SÁEZ, M. . Eigenvalue bounds for the Paneitz operator and its associated third-order boundary operator on locally conformally flat manifolds. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 24, n. 4, p. 2047-2081, 2023. DOI: 10.2422/2036-2145.202109_018. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/5807. Acesso em: 20 feb. 2026.