1. Tran , M. C. Hegarty Receiver Algorithms for the New Civil GPS Signals January 2002
2. NAVSTAR GPS Space Segment/User Segment L5 Interfaces December 2, 2002
3. Proposed New L5 Civil GPS Codes;Spilker;NAVIGATION, Journal of The Institute of Navigation,2001
4. Fontana , R. W. Cheung T. Stansell The New L2 Civil Signal September 2001
5. Proposed Interface Revision Notice (PIRN) to ICD-GPS-200C for L2 Civil (L2C) Signal November 8, 2002