1. M. Arnold. The geometry of wheel-rail contact. In [Fl].
2. K.E. Brenan, S.L. Campbell, and L.R. Petzold. Numerical solution of initial-value problems in differential-algebraic equations. SIAM, Philadelphia, 2nd edition, 1996.
3. K. Frischmuth, editor. The dynamical simulation of wheel-rail systems, Proc. of the First Workshop on „Dynamics of Wheel-Rail-Systems“, Universität Rostock, FB Mathematik, Preprint 94/21, November 1994.
4. K. Frischmuth. On the numerical solution of rail-wheel contact problems. J. Theoretical and Applied Mechanics, 34:1–15, 1996.
5. K. Frischmuth. Regularization methods for non-smooth dynamical problems. In R. Bogacz and K. Popp, editors, „Dynamical Problems in Mechanical Systems”, Polish Academy of Sciences, Warsaw, 1996.