12. Trigg, T., Telleen, P., Boyd, R., Cuenot, F., D’Ambrosio, D., Gaghen, R., and Kaneko, H. (2013). Global EV outlook: Understanding the electric vehicle landscape to 2020. Int. Energy Agency, 1–40.
21. Bordetsky, A., Casey-Lefkowitz, S., Lovaas, D., Martin-Perera, E., Nakagawa, M., Randall, B., and Woynillowicz, D. (2007). Driving It Home: Choosing the Right Path for Fueling North America’s Transportation Future. Natural Resources Defense Council (United States); Western Resource Advocates (United States); Pembina Institute (United States).
22. Bartis, J. T., LaTourrette, T., Dixon, L., Peterson, D. J., and Cecchine, G. (2005). Oil Shale Development in the United States: Prospects and Policy Issues. Rand Corporation.