UŚCIŁOWSKA, Anita. Application of the Trefftz method to nonlinear potential problems. Computer Assisted Methods in Engineering and Science, [S. l.], v. 15, n. 3-4, p. 377–390, 2022. Disponível em: https://cames3.ippt.pan.pl/index.php/cames/article/view/747. Acesso em: 12 jan. 2025.