1. (8) T. Nagashima, T. Shinzato, and I. Kaku: “Facility Location Problem of Quick Electric Recharging System for Electric Vehicles”, Vol. 64, No. 4, pp. 557-560 (2013) (in Japanese)
2. (9) Y.-W. Wang and C.-C. Lin: “Locating road-vehicle refueling stations”, Transportation Research, Part E 45, pp. 821-829 (2009)
3. (10) F. Koyanagi and Y. Uriu: “Proper Configuration of the Charging Station for Electric Vehicle by Weighted Voronoi Mapping Method”, IEEJ Trans. PE, Vol. 119, No. 12, pp. 1412-1419 (1999) (in Japanese)
4. (12) R. Hiwatari, K. Okano, Y. Asaoka, and T. Ikeya: “Development of Trafic Simulator for Analysis on Charging Infrastructure of Next Generation Vehicle Basic Analysis System toward Spread of Electric Vehicle”, CRIEPI, L09009 (2010) (in Japanese)
5. (13) S.-N. Yang, W.-S. Cheng, Y.-C. Hsu, C.-H. Gan, and Y.-B. Lin: “Charge scheduling of electric vehicles in highways”, Math. & Comput. Modelling, Vol. 57, Issues 11-12, pp. 2873-2882 (2013)