JAKUBOVIČOVÁ, Lenka; VAŠKO, Milan; KOMPIS, Vladimir. Trefftz functions using the fundamental solution with the singularity outside the domain. Computer Assisted Methods in Engineering and Science, [S. l.], v. 10, n. 4, p. 515–521, 2023. Disponível em: https://cames3.ippt.pan.pl/index.php/cames/article/view/1061. Acesso em: 12 jan. 2025.