AKÖZ, A. Y., and M. AKSOYDAN. “Transfer and Stiffnes Matrix for Timoshenko Beams on Elastic Foundations”. ITU ARI Bulletin of Istanbul Technical University, vol. 54, no. 03, Feb. 2005, pp. 1-16, https://ari.itu.edu.tr/index.php/ituari/article/view/57.