LIFITS, Sergei; REUTSKIY, Sergei; TIROZZI, Brunello. Trefftz spectral method for initial-boundary problems. Computer Assisted Methods in Engineering and Science, [S. l.], v. 4, n. 3-4, p. 549–565, 2023. Disponível em: https://cames3.ippt.pan.pl/index.php/cames/article/view/1389. Acesso em: 26 jan. 2025.