KOƁODZIEJ, Jan A.; STAROSTA, Roman. Self-adaptive Trefftz procedure for harmonic problems. Computer Assisted Methods in Engineering and Science, [S.l.], v. 4, n. 3-4, p. 491-500, june 2023. ISSN 2956-5839. Available at: <https://cames.ippt.gov.pl/index.php/cames/article/view/1385>. Date accessed: 21 nov. 2024.