Computational Imaging of Small-Amplitude Biperiodic Surfaces with Negative Index Material. CSIAM Transactions on Applied Mathematics, [S. l.], v. 6, n. 1, p. 148–175, 2025. DOI: 10.4208/csiam-am.SO-2024-0008. Disponível em: https://www.global-sci.com/index.php/csiam-am/article/view/7881. Acesso em: 6 dec. 2025.