„The Unknown Start-up That Built Google's First Self-Driving Car”. IEEE Spectrum: Technology, Engineering, and Science News (на језику: енглески). 19. 11. 2014. Приступљено 1. 7. 2020. „Though Google has portrayed Thrun as its “godfather” of self-driving, a review of the available evidence suggests that the motivating force behind the company’s program was actually Levandowski”CS1 одржавање: Формат датума (веза)