1. Toth, P. and D. Vigo (2002), “The Vehicle Routing Problem”, SIAM Monographs Discrete Mathematics and Applications, edited by P. Toth and D. Vigo, Philadelphia, USA.
2. Laporte, G., M. Gendreau, J.-Y. Potvin and F. Semet (1999), “Classical and Modern Heuristics for the Vehicle Routing Problem”, Les Cahiers du GERAD, G-99-21, Montreal, Canada.
3. Gendreau, M., G. Laporte and J.-Y. Potvin (1998), “Metaheuristics for the Vehicle Routing: Problem”, Les Cahiers du GERAD, G-98-52, Montreal, Canada.
4. Gendreau, M., G. Laporte and J.-Y. Potvin (1997), “Vehicle routing: modern heuristics. Local Search in Combinatorial Optimization”, eds.: E. Aarts and J.K. Lenstra, 311–336, Wiley: Chichester.
5. Glover, F. (1986), “Future Paths for Integer Programming and Links to Artificial Intelligence”, Computers and Operations Research 13, 533–549.