Xiaoli Luan, Libo Liu, Weixing Wan, Jiuhou Lei, Shun‐Rong Zhang, John M. Holt, Michael P. Sulzer, “A study of the shape of topside electron density profile derived from incoherent scatter radar measurements over Arecibo and Millstone Hill”, Radio Science, 41, no. 4, 2006, 2005RS003367
Alessio Pignalberi, Michael Pezzopane, David R. Themens, Haris Haralambous, Bruno Nava, Pierdavide Coisson, “On the Analytical Description of the Topside Ionosphere by NeQuick: Modeling the Scale Height Through COSMIC/FORMOSAT-3 Selected Data”, IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing, 13, 2020, 1867
S.M. Park, H. Kim, S. Min, J. Park, J.H. Lee, H. Kil, L.J. Paxton, S.-Y. Su, J. Lee, K.W. Min, “Effects of solar activity variations on the low latitude topside nighttime ionosphere”, Advances in Space Research, 42, no. 4, 2008, 626
A. Pignalberi, M. Pezzopane, R. Rizzi, “Modeling the Lower Part of the Topside Ionospheric Vertical Electron Density Profile Over the European Region by Means of Swarm Satellites Data and IRI UP Method”, Space Weather, 16, no. 3, 2018, 304
M. Schmidt, D. Bilitza, C.K. Shum, C. Zeilhofer, “Regional 4-D modeling of the ionospheric electron density”, Advances in Space Research, 42, no. 4, 2008, 782