1. SAFRAN Electronics and Defense, https://www. safran-electronics-defense.com/aerospace//militaryaircraft/ navigation-systems
2. Honeywell, https://aerospace.honeywell.com/en/pro ducts/navigation-and-sensors/embedded-gps-or-ins
3. Northrop Grumman, http://www.northropgrumman. com/Capabilities/LN100GInertialNavigationSystem/ Pages/default.aspx
4. Golovan, A.A., and Parusnikov, N.A. Matematicheskie osnovy navigatsionnykh system. Chast I. Matematicheskie modeli inertsial’noi navigatsii (Mathematical Background of Navigation Systems. Part 1. Mathematical Models of Inertial Navigation), Moscow, MAKS Press, 2011.
5. Taz’ba, A.M., Levi, Yu.V., and Ermolina, M.A., Structures of Integrated Navigation systems Based on Strapdown Inertial Navigation Systems of Medium Accuracy, in Integrirovannye inertsial’no-sputnikovye sistemy navigatsii (Integrated Inertial Satellite Navigation Systems) collected articles and papers (in the Russian language), Saint Petersburg, Elektropribor, 2004, pp.115−127.