NHUNG, T. V.; ZOBORY, I. ON THE EXISTENCE OF STABLE STATIONARY FORCED VERTICAL VIBRATIONS IN RAILWAY VEHICLE SYSTEM DYNAMICS. Periodica Polytechnica Transportation Engineering, [S. l.], v. 20, n. 1, p. 3–12, 1992. Disponível em: https://pp.bme.hu/tr/article/view/6660. Acesso em: 5 may. 2024.