A. V. Koustov, M. G. Nejad, H. Fast, and P. V. Ponomarenko. Real Heights of SuperDARN F Region Echoes Inferred From Electron Density Measurements by the Rankin Inlet and RISR-C Radars. Radio Science, volume 61, issue 2, January 2026 . A. V. Koustov, S. Ullrich, P. V. Ponomarenko, M. Ghalamkarian-Nejad, D. R. Themens, and R. G. Gillies. Occurrence Rates of SuperDARN Ground Scatter Echoes and Electron Density in the Ionosphere. Radio Science, volume 57, issue 11, 2022 .