Kompiš, Vladimir, František Konkol, and Milan Vasko. “Trefftz-Polynomial Reciprocity Based FE Formulations”. Computer Assisted Methods in Engineering and Science 8, no. 2-3 (March 2, 2023): 385–395. Accessed January 12, 2025. https://cames3.ippt.pan.pl/index.php/cames/article/view/1177.