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3. Lobanova, L.K., The Analytical Review According to the Materials of the US Federal Radionavigation Plan of 2008, no. 59, St. Petersburg: RIRT, 2009.
4. Informatsionno-analiticheskii tsentr koordinatno-vremennogo i navigatsionnogo obespecheniya TSNIImash (The Information-Analytical Center of Positioning, Timing, and Navigation Support of the CSRImech). E-mail: cnss@mss.rsa.ru
5. Vulnerability Assessment of the Transportation Infra-structure Relying on the Global Positioning System. Final Report, J. A. Volpe National Transportation System Center, August 2001.