[1] I. Osman. Metastrategy simulated annealing and tabu search algorithms for the vehicle routing problem, Annals of Operations Research, No. 41, pp. 421-451, 1993.

[2] F.Leclerc, J.Y.Potvin. Genetic algorithm for vehicle dispatching , Int. Trans. Opl.Res, Vol.4, No.5/6, pp. 391-400, 1997.

[3] G. Barbarosoglu, D. Ozgur. A tabu search algorithm for the vehicle routing problem, Computers & Operations Research, No. 26, pp. 255-270, 1999.

[4] C.D.Tarantilis, C.T.Kiranoudis. A meta-heuristic algorithm for the efficient distribution of perishable food , Journal of food Engineering, No. 50, pp. 1-9, 2001.

[5] H. Igarashi. A vehicle schedule planning system using a simulated annealing method(in Japanese) , Journal of the Transactions of the Institute of Electronics, Information and communication Engineers, Japan, Vol. J78-D-II, No.5, pp. 819-826, 1995.

[6] K. Chen, Y. Takama, and K. Hirota. A calculation model of hierarchical multiplex structure for vehicle routing & scheduling dispatching problem with single depot, Japan Society for Fuzzy Theory and Systems, Vol.13, No.2, pp.187-198, 2001.

[7] F. Dong, K. Chen, E. M. Iyoda, H. Nobuhara, K. Hirota. Solving Truck Delivery Problems Using Interated Evaluation Criteria Based on Neighborhood Degree and Evolutionary Algorithm , J. of Advanced Computational Intelligence and Intelligent Informatics, Vol.8, No.3, pp.336-345, 2004.