Theodore B. Olson
Ryan, J. Rev.
Andrea Nair
Grenville Davey
European Transport Planning Colloquium (1991 Brussels)
Jens August Schade
Richard Clewes
Stig Claesson
L. V. Voĭtovych
John Ross Milley
Mahlubi Mabizela
Sven Delblanc
Marian Fushell
Torkel Wallmark
David Greig