1. Hobbs, A. E. W., A survey of creep, DYN/52 (1967), British Railway Research Dept., Derby, England.
2. Johnson, K.L., The effect of a tangential contact force upon the rolling motion of an elastic sphere on a plane, Journal of Applied Mechanics, Vol.25 (1958), pp.339-346.
3. Kalker, J.J., Three-dimensional elastic bodies in rolling contact (1990), KLUWER ACADEMIC PUBLISHERS.
4. Kang, Q., Iguchi, M., Nishimura, S. and Tanimoto, M., Experimental study on creep between full-scale railway wheel and rail, Transactions of the Japan Society of Mechanical Engineers, Series C, Vol.59, No.559 (1993), pp.777-781 (in Japanese).
5. Knothe, K., History of wheel/rail contact mechanics: from Redtenbacher to Kalker, Vehicle System Dynamics, Vol.46, Nos.1-2 (2008), pp.9-26.