1. Akos, D. M. (2012). Who’s afraid of the spoofer? GPS/GNSS spoofing detection via automatic gain control (agc). Navigation, Journal of the Institute of Navigation, 59(4), 281–290. https://doi.org/10.1002/navi.19
2. Anderson, J. M., Carroll, K. L., DeVilbiss, N. P., Gillis, J. T., Hinks, J. C., O’Hanlon, B. W., Rushanan, J. J., Scott, L., & Yazdi, R. A. (2017). Chips-message robust authentication (chimera) for GPS civilian signals. In 30th international technical meeting of the satellite division of the institute of navigation, ION GNSS 2017, September 25, 2017–September 29, 2017.
3. Becker, G. T., Lo, S., De Lorenzo, D., Qiu, D., Paar, C., & Enge, P. (2009). Efficient authentication mechanisms for navigation systems—A radio-navigation case study. In 22nd international technical meeting of the satellite division of the institute of navigation 2009, ION GNSS 2009, ION GNSS 2009, September 22, 2009–September 25, 2009.
4. Bertran, X., Vidal, A., & Panefieu, B. (2005). Galileo's Public Regulated Service (PRS)—Future perspective and benefits. In Proceedings of the 18th international technical meeting of the satellite division of the institute of navigation, ION GNSS 2005, ION GNSS 2005, September 13, 2005–September 16, 2005.
5. Bhamidipati, S., Mina, T. Y., & Gao, G. X. (2018). GPS time authentication against spoofing via a network of receivers for power systems. In 2018 IEEE/ION position, location and navigation symposium, PLANS 2018—Proceedings, April 23, 2018—April 26, 2018.