1. Franke, U., Gavrila, D., Gorzig, S., et al.: Autonomous driving goes downtown. IEEE Intell. Syst. Their Appl. 13(6), 40–48 (1998)
2. Zhang, X., Gao, H., Guo, M., et al.: A study on key technologies of unmanned driving. CAAI Trans. Intell. Technol. 1(1), 4–13 (2016)
3. Levinson, J., Askeland, J., Becker, J., et al.: Towards fully autonomous driving: Systems and algorithms. (2011)
4. Im, D.Y., Ryoo, Y.J., Kim, D.Y., et al.: Unmanned driving of intelligent robotic vehicle. Isis Symposium on Advanced Intelligent Systems, (2009)
5. Watanabe, T., Oshida, K., Matsumoto, Y., et al.: Driving assistance system for appropriately making the driver recognize another vehicle behind or next to present vehicle. (2010)