1. S. P. Timoshenko, Method of Analysis of Statical and Dynamical Stresses in Rail (Proceedings of the Second International Congress for Applied Mechanics, Zurich, Switzerland, 1926).
2. J. J. Labra, Acta Mech. 22, 113 (1975).
3. A. D. Kerr, Int. J. Mech. Sci. 14, 71 (1972).
4. S. P. Timoshenko, and B. F. Langer, J. Appl. Mech. 54, 277 (1932).
5. M. T. Tran, K. K. Ang, and V. H. Luong, J. Sound Vib. 333, 5427 (2014).