1. Parkinson B. A history of satellite navigation. Navigation, 1995, 42(1): 109–164
2. Hegarty C J, Chatre E. Evolution of the Global Navigation Satellite System (GNSS). Proc IEEE, 2008, 96: 1902–1917
3. McDonald K. Navigation Satellite Systems—A Perspective. In: Proceedings of the 1st International Symposium Real Time Differential Applications of the Global Positioning System, Vol. 1, Braunschweig, Federal Republic of Germany, 1991. 20–35
4. Kazantsev V N. Overview and design of the GLONASS system. In: Proceedings of the International Conference on Sattellite Communications, Vol. II, Moscow, Russia, Oct. 18–21, 1994. 207–216
5. Zandbergen R, Dinwiddy S, Hahn J, et al. Galileo orbit selection. In: Proceedings of the Institute of Navigation: ION GNSS, Long Beach, Ca, USA, 2004