6[5]Bodin L D, Golden B L. Routing and scheduling of vehicles and crews: the state of art [J]. Computers ＆ Operations Research, 1983(10): 63-211.
7[6]Luis G. A result on projection for the vehicle routing problem [J]. European Journal of Operational Research, 1995(85): 610-624.
8[7]Dimitris J B, David S. A new generation of vehicle routing research [J]. Survey, Expository ＆ Tutorial, 1995, 44(2):286-303.
9[9]Hwang H S. An improved model for vehicle routing problem with time constraint based on genetic algorithm [J]. Computers ＆Industrial Engineering, 2002(42): 361-369.
10[10]Paolo T,Daniele V. Models, relaxations and exact approaches for the capacitated vehicle routing problem [J]. Discrete Applicated Mathematics, 2002(123): 487-512.
1Orlitzky M,Schmidt F L,Rynes S LCorpo-rate social and financial performance:A mela-analysis[J].Organization studies,2003,24(3).
2Andersen M L,DEJOY J S.Corporate Social and Financial Performance:The Role of Size,lndustry,Risk,R&D and Advertising Ex-penses as Control Variables[J].Business and So-ciety Review,2011,116(2).
3Griffin J J,Mahon J F.The corporate so-cial performance and corporate financial per-formance debate twenty-five years of incompa-rable research [J].Business & Society,1997,36(1).
