M. El-Gizawy

Development of an ionosphere monitoring technique using GPS measurements for high latitude GPS users

M. El-Gizawy, Mahmoud Lotfy El-Gizawy, 2003 .

LIMITATIONS IN GPS POSITIONING ACCURACIES AND RECEIVER TRACKING PERFORMANCE DURING SOLAR MAXIMUM

S. Skone, S. Skone, S. M. Shrestha, 2001 .