By Jason Young
By C. Roos
By C. Kuzemko
By M. Kilkey, D. Perrons, A. Plomien
By M. Laguerre
By J. Briceno-Ruiz
By Anis Chowdhury, Colin Kirkpatrick
By Howard Jones
By Dharam Ghai
By B. Mitchell
By A.R. Kuklinski
By Professor Peter Nijkamp
By Diana Carney, John Farrington
By Richard Huggett
By B. S. Hoyle
By Mulatu Wubneh, Yohannis Abate
By Stephen Morse, Michael Stocking
By Steve Burton, Alan Jeanes
By Brian Dicks
By B.H. Farmer
By Deryke Belshaw, the late Arthur Ian Livingstone
By Ralph Mansell Prothero
By D.L. Cohen, J. Daniel
By Tony Binns
By Marta Colburn, Adam Bradbury
By Rand McNally, Rosemary Burton
By Suggs
By Zoran Pavlovic