Z. Wesołowski and J. Widłaszewski, “Large Plane Dynamics Postcritical Deformations of Elastic Beam”, Eng. Trans., vol. 40, no. 4, pp. 469–481, Dec. 1992, Accessed: Jan. 17, 2026. [Online]. Available: http://et.ippt.gov.pl/index.php/et/article/view/1607