1. Solution improvement heuristics for the vehicle routing problem with time window constraints;Baker;American Journal of Mathematical and Manage. Sci.,1988
2. Routing and scheduling of vehicles and crews: The state of the art;Bodin;Comput. Oper. Res.,1983
3. A new optimization algorithm for the vehicle routing problem with time windows;Desrochers;Oper. Res.,1992
4. Vehicle routing with time windows: optimization and approximation;Desrochers,1988
5. Time constrained routing and scheduling;Desrosiers,1995