Steve Barry
Mann, Paul B.
PEP (Professional Engineering Publishers)
Hardy, Brian
David Larkin
Railtech 96 (1996)
Matarō Kurizuka
R. W. Kidner
Rush, R. W.
Dell A. McCoy
Juliet Scoble
Unknown Author
Leonard A. Jones
Jüri Loog
O. Doyle
Barry, John Wolfe.
Oliver Doyle
Deborah C. Ladomirak