1. ADINA R & D, Inc, ADINA, Automatic dynamic incremental non linear analysis, USA. 2005.
2. Formulation and analysis of conserving algorithms for frictionless dynamic contact/impact problems;Armero;Computers Methods in Applied Mechanics and Engineering,1998
3. Finite Element Procedures;Bathe,1996
4. A solution method for planar and axisymmetric contact problems;Bathe;International Journal for Numerical Methods in Engineering,1985
5. CEN—European Committee for Standardization (2003). EN1991-2, Actions on structures—Part 2: General actions—Traffic loads on Bridges.