PILTNER, Reinhard. On the systematic construction of trial functions for hybrid Trefftz shell elements. Computer Assisted Methods in Engineering and Science, [S. l.], v. 4, n. 3-4, p. 633–644, 2023. Disponível em: https://cames3.ippt.pan.pl/index.php/cames/article/view/1395. Acesso em: 26 jan. 2025.