KoƂodziej, J. A., Mierzwiczak, M., & Tylicki, H. (2022). Effective flexural rigidity of perforated plates by means of Trefftz method with using special purpose Trefftz functions. Computer Assisted Methods in Engineering and Science, 15(3-4), 225-237. https://cames3.ippt.pan.pl/index.php/cames/article/view/731