Ganji, D. D., Sadighi, A., Tari, H., Gorji, M., & Haghparast, N. (2008). Large deflection of a cantilever beam under point load using the homotopy perturbation method. Topological Methods in Nonlinear Analysis, 31(2), 271–277. Retrieved from https://apcz.umk.pl/TMNA/article/view/TMNA.2008.018