COLOMBINI, F.; DEL SANTO, D. .; FANELLI, F. Well-posedness results for hyperbolic operators with coefficients rapidly oscillating in time. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 26, n. 4, p. 1905-1927, 2025. DOI: 10.2422/2036-2145.202301_017. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/6137. Acesso em: 20 feb. 2026.