Bardzokas, D., and G.E. Exadaktylos. “Plane Contact of a Cylindrical Opening Stiffened by a Thin Shell”. Engineering Transactions 43, no. 1-2 (July 1, 1995): 27–44. Accessed June 10, 2025. https://et3.ippt.pan.pl/index.php/et/article/view/1483.