Kopecki, Henryk, and Jan Zacharzewski. “Crack Propagation in Rectangular thin‐walled Plates With Concentrators Subected to Cycling Loading”. Aviation 9, no. 3 (September 30, 2005): 23-28. Accessed December 2, 2024. https://btp.vgtu.lt/index.php/Aviation/article/view/7417.