D. J. Madera, R. A. Marshall, S. Elschot, S. Kaeppler, P. Reyes, R. H. Varney, and A. B. Crew. Time-Dependent Inversion of Energetic Electron Precipitation Spectra From Ground-Based Incoherent Scatter Radar Measurements. Journal of Geophysical Research: Space Physics, volume 128, issue 5, 2023 . T. Hedges, N. Lee, and S. Elschot. Meteor Head Echo Analyses From Concurrent Radar Observations at AMISR Resolute Bay, Jicamarca, and Millstone Hill. Journal of Geophysical Research: Space Physics, volume 127, issue 10, 2022 .