1. Transportation on demand;Cordeau,2007
2. Hauptmeier D, Krumke SO, Rambau J, Wirth H-C. Euler is standing in line: dial-a-ride problems with fifo-precedence-constraints, Preprint SC 99-06, Konrad-Zuse-Zentrum fur Informationstechnik Berlin, 1999.
3. Optimal routing of multiple-load AGV subject to LIFO loading constraints;Levitin;Computers & Operations Research,2003
4. An algorithm for the traveling salesman problem with pickup and delivery requests;Kalantari;European Journal of Operational Research,1985
5. An additive bounding procedure for combinatorial optimization problems;Fischetti;Operations Research,1989