1. History of self-driving cars Wikipedia; https://en.wikipedia.org/wiki/History_of_self-driving_cars.
2. J3016-201806 Taxonomy and Definitions for Terms Related to Driving Automation Systems for On-Road Motor Vehicles SAE International; www.sae.org/standards/content/j3016_201806/.
3. J. Karsten D. West Techtank: The state of self-driving car laws across the U.S. Brookings Institution 1 May 2018; www.brookings.edu/blog/techtank/2018/05/01/the-state-of-self-driving-car-laws-across-the-u-s/.
4. R. Bourke White Jr. Science and Insight: For Science Fiction Writing (AuthorHouse 2012).