Y. He, B. Venkatesh, and L. Guan, "Optimal scheduling for charging and discharging of electric vehicles," IEEE transactions on smart grid, vol. 3, pp. 1095-1105, 2012.
 P. Richardson, D. Flynn, and A. Keane, "Optimal charging of electric vehicles in low-voltage distribution systems," IEEE Transactions on Power Systems, vol. 27, pp. 268-279, 2012.
 N. Rotering and M. Ilic, "Optimal charge control of plug-in hybrid electric vehicles in deregulated electricity markets," IEEE Transactions on Power Systems, vol. 26, pp. 1021-1029, 2011.
 S. Haffner, L. F. A. Pereira, L. A. Pereira, and L. S. Barreto, "Multistage model for distribution expansion planning with distributed generation—Part I: Problem formulation," IEEE Transactions on Power Delivery, vol. 23, pp. 915-923, 2008.
 S. Haffner, L. F. A. Pereira, L. A. Pereira, and L. S. Barreto, "Multistage model for distribution expansion planning with distributed generation—Part II: Numerical results," IEEE Transactions on Power Delivery, vol. 23, pp. 924-929, 2008.
 H. Falaghi, C. Singh, M.-R. Haghifam, and M. Ramezani, "DG integrated multistage distribution system expansion planning," International Journal of Electrical Power & Energy Systems, vol. 33, pp. 1489-1497, 2011.
 E. Naderi, H. Seifi, and M. S. Sepasian, "A dynamic approach for distribution system planning considering distributed generation," IEEE Transactions on Power Delivery, vol. 27, pp. 1313-1322, 2012.
 Yue Xiang, Wei Yang, Junyong Liu and Furong Li, Multi-Objective Distribution Network Expansion Incorporating Electric Vehicle Charging Stations" Received: 31 August 2016; Accepted: 27 October 2016; Published: 3 November 2016.
 Lu, Z.,Wen, F., and Ledwich, G., “Optimal planning of electric vehicle charging stations in distribution systems, “ IEEE Trans. Power Del., Vol. 28, No. 1, pp. 102–110, 2013.
 Wang, G., Xu, Z.,Wen, F., andWong, K., “Traffic-constrained multi-objective planning of electric vehicle charging stations,” IEEE Trans. Power Del., Vol. 28, No. 4, pp. 2363–2372, 2013.
 Gonz´alez-Sotres, L., Domingo, C., Sanchez-Miralles, A., and Miro, M., “Large-scale MV/LV transformer substation planning considering network costs and flexible area decomposition,” IEEE Trans. Power Deliv.,Vol. 28, No. 4, pp. 2245–2253, 2013.
 Nick, M., Cherkaoui, R., and Paolone, M., “Optimal allocation of dispersed energy storage systems in active distribution networks for energy balance and grid support,” IEEE Trans. Power Syst., Vol. 29, No. 5, pp. 2300–2310, 2014.
 K. Clement-Nyns, E. Haesen, and J. Driesen, "The impact of charging plug-in hybrid electric vehicles on a residential distribution grid," IEEE Transactions on Power Systems, vol. 25, pp. 371-380, 2010.
 L. P. Fernandez, T. G. San Roman, R. Cossent, C. M. Domingo, and P. Frías, "Assessment of the impact of plug-in electric vehicles on distribution networks," IEEE Transactions on Power Systems, vol. 26, pp. 206-213, 2011.
 G. Razeghi, L. Zhang, T. Brown, and S. Samuelsen, "Impacts of plug-in hybrid electric vehicles on a residential transformer using stochastic and empirical analysis," Journal of Power Sources, vol. 252, pp. 277-285, 2014.
 W. Yao, J. Zhao, F. Wen, Z. Dong, Y. Xue, Y. Xu, et al., "A multi-objective collaborative planning strategy for integrated power distribution and electric vehicle charging systems," IEEE Transactions on Power Systems, vol. 29, pp. 1811-1821, 2014.
 G. Wang, Z. Xu, F. Wen, and K. P. Wong, "Traffic-constrained multiobjective planning of electric-vehicle charging stations," IEEE Transactions on Power Delivery, vol. 28, pp. 2363-2372, 2013.
 Y. Zheng, Z. Y. Dong, Y. Xu, K. Meng, J. H. Zhao, and J. Qiu, "Electric vehicle battery charging/swap stations in distribution systems: comparison study and optimal planning," IEEE transactions on Power Systems, vol. 29, pp. 221-229, 2014.
 J. Dong, C. Liu, and Z. Lin, "Charging infrastructure planning for promoting battery electric vehicles: An activity-based approach using multiday travel data," Transportation Research Part C: Emerging Technologies, vol. 38, pp. 44-55, 2014.
 P. Sadeghi-Barzani, A. Rajabi-Ghahnavieh, and H. Kazemi-Karegar, "Optimal fast charging station placing and sizing," Applied Energy, vol. 125, pp. 289-299, 2014.
 W. Yao, C. Chung, F. Wen, M. Qin, and Y. Xue, "Scenario-Based Comprehensive Expansion Planning for Distribution Systems Considering Integration of Plug-in Electric Vehicles," IEEE Transactions on Power Systems, vol. 31, pp. 317-328, 2016.
 National Household Travel Survey [Online]. Available: http://nhts.ornl.gov..
 J. A. Bondy and U. S. R. Murty, Graph theory with applications vol. 290: Citeseer, 1976.
 J. M. Rupa and S. Ganesh, "Power Flow Analysis for Radial Distribution System Using Backward/Forward Sweep Method," World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering, vol. 8, pp. 1621-1625, 2014.