Christos N. Pyrgidis
Wilson, John R.
Thomas C. Keefer
Elisabeth Köll
Andreas Van-Hametner
S. N. Tretʹi︠a︡k
Manuel Baritaud
Linda Tjia Yin-nor
Johann-Peter Friedmann
International Railtech Congress '98 (1998 Birmingham, England)
Cristina de Campos
Ovidiana Bulumac
José Elías Jiménez Sánchez
International Conference on Fault-Free Infrastructure: Effective Solutions to Improve Efficiency (1999 Derby, England)
Satish Chandra
European Conference of Ministers of Transport.
Barry J. Eichengreen
International Conference, Dedicated Freight Corridors: Challenges and Opportunities (2013 New Delhi, India)
United States. Congress. House. Committee on Ways and Means. Subcommittee on Oversight
V. A. Profillidis