Poorjamshidian, M., Sheikhi, J., Mahjoub-Moghadas, S., & Nakhaie, M. (2014). Nonlinear Vibration Analysis of the Beam Carrying a Moving Mass Using Modified Homotopy. Journal of Solid Mechanics, 6(5), 389-396. https://oiccpress.com/jsm/article/view/12476