Afraimovich, E. L., O. S. Lesyuta, I. I. Ushakov, and S. V. Voeykov. “Geomagnetic Storms and the Occurrence of Phase Slips in the Reception of GPS Signals”. Annals of Geophysics 45, no. 1 (December 25, 2002). Accessed April 25, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/3494.