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 .

G. V. Khazanov, C. Gabrielse, A. Glocer, M. Chu, Y. Nishimura, and P. Reyes. A 2D Kaleidoscope of Electron Heat Fluxes Driven by Auroral Electron Precipitation. Geophysical Research Letters, volume 49, issue 18,  2022 .

Q. Ma, W. Xu, E. R. Sanchez, R. A. Marshall, J. Bortnik, P. M. Reyes, R. H. Varney, S. R. Kaeppler, Y. Miyoshi, A. Matsuoka, Y. Kasahara, S. Matsuda, F. Tsuchiya, A. Kumamoto, S. Kasahara, S. Yokota, K. Keika, T. Hori, T. Mitani, S. Nakamura, Y. Kazama, S.-Y. Wang, C.-W. Jun, I. Shinohara, and S. W.-Y. Tam. Analysis of Electron Precipitation and Ionospheric Density Enhancements Due To Hiss Using Incoherent Scatter Radar and Arase Observations. Journal of Geophysical Research: Space Physics, volume 127, issue 8,  2022 .

E. R. Sanchez, Q. Ma, W. Xu, R. A. Marshall, J. Bortnik, P. Reyes, R. Varney, and S. Kaeppler. A Test of Energetic Particle Precipitation Models Using Simultaneous Incoherent Scatter Radar and Van Allen Probes Observations. Journal of Geophysical Research: Space Physics, volume 127, issue 8,  2022 .

S. R. Kaeppler, E. Sanchez, R. H. Varney, R. J. Irvin, R. A. Marshall, J. Bortnik, A. S. Reimer, and P. M. Reyes. Chapter 6 - Incoherent scatter radar observations of 10–100keV precipitation: review and outlook. The Dynamic Loss of Earth's Radiation Belts, Elsevier,  2020 .