1. Bogacz, R., Popp, K.: Dynamics and stability of train-track-systems, in: Proc. 2nd Int. Conf. on Recent Advances in Structural Dynamics (Petyt, M., Wolfe, H. F., eds.), pp. 709?721. University of Southampton 1984.
2. Nelson, H. D., Conover, R. A.: Dynamic stability of a beam carrying moving masses. J. Appl. Mech.38, 1003?1006 (1971).
3. Benedetti, G. A.: Dynamic stability of a beam loaded by sequence of moving mass particles. J. Appl. Mech.41, 1069?1071 (1974).
4. Kaliski, S.: Travelling surface waves in finite systems. Proc. Vibr. Probl.4, (7), 387?402 (1966).
5. Bisplinghoff, R. L., Ashley, H.: Principles of aeroelasticity. New York, London 1962.