%0 Conference Paper %B Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN %D 2007 %T Sensitivity Analysis of Track Vibrations due to Vertical Stiffness Variation in High-Speed Railways %A Z. Dimitrovová %A Varandas, J.N. %A Almeida, J.R. %A Silva, M. A. G. %C Rethymno, Crete