1. Interstate Radio Navigation Program of the State-Members of Commonwealth of Independent States for 2001–2005, Concept of Developing Radio Navigation Systems (2001).
2. G. Gibbons, “GLONASS: the way ahead,” Inside GNSS, 20 (Spring, 2007).
3. Access Mode—Current state and perspectives of developing satellite radio navigation, Reports on the state of GLONASS and GPS.
4. Russian Radio Navigation Plan, NTC “Internavigatsiya” (1999).
5. Federal Radio Navigation Plan of USA, TC and DC of USA (1999).