1. The Trans-European High-speed Rail System, Guide for the Application of the High-speed TSIs of Council Directive 96/48/EC, Preface by Loyola de Palacio, 2003
2. Technical Specifications for Interoperability (TSI), Off. J. Eur. Commun. 45 (2002), pp. 143–274
3. EN 14363 Railway applications – Testing for the acceptance of running characteristics of railway vehicles – Testing of running behaviour and stationary tests(2005)
4. EN 13848-5 Track geometry quality – Part 5: Geometric quality levels(2008)