C. Hochard, P. Ladevèze, and L. Proslier, “A Trefftz simplified method for the computation of elastic structures”, Comp. Assist. Methods Eng. Sci., vol. 4, no. 3-4, pp. 383–396, Jun. 2023, Accessed: Jun. 29, 2025. [Online]. Available: https://cames.ippt.pan.pl/index.php/cames/article/view/1380