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Passenger transportation
Gendreau, Michel, (1995)
Freight transportation
Operations research proceedings 1999 : selected papers of the Symposium on Operations Research (SOR '99), Magdeburg, September 1 - 3, 1999
Inderfurth, Karl, (2000)
On the bottleneck linear programming problem
Seshan, C. R., (1982)
A time minimising transportation problem with quality dependent time
Achary, K. K., (1981)