R. A. Makarevich, G. Crowley, I. Azeem, C. Ngwira, and V. V. Forsythe. Auroral E-Region as a Source Region for Ionospheric Scintillation. Journal of Geophysical Research: Space Physics, volume 126, issue 5, May  2021 .

V. V. Forsythe, I. Azeem, G. Crowley, and D. R. Themens. Ionospheric Vertical Correlation Distances: Estimation From ISR Data, Analysis and Implications For Ionospheric Data Assimilation. Radio Science,  2020 .

D. Loucks, S. Palo, M. Pilinski, G. Crowley, I. Azeem, and D. Hampton. High-latitude GPS Phase Scintillation from E Region Electron Density Gradients During the December 20-21, 2015 Geomagnetic Storm. J. Geophys. Res., American Geophysical Union,  2017 .

S. Datta-Barua, Y. Su, K. Deshpande, D. Miladinovich, G. S. Bust, D. Hampton, and G. Crowley. First light from a kilometer-baseline Scintillation Auroral GPS Array. Geophys. Res. Lett., volume 42, pages 3639-3646,  2015 .