A global mapping technique for GPS‐derived ionospheric total electron content measurementsA. J. Mannucci, Thomas F. Runge, U. J. Lindqwister et al.|Radio Science|1998Cited by 1.3k
Monitoring Ionospheric Total Electron Content Using the Global GPS NetworkBrian Wilson, Thomas F. Runge, A. J. Mannucci et al.|NASA Technical Reports Server (NASA)|1995Cited by 1