heavy ions

Bashir, F., & Ilie, R. (2021). The First Observation of N+ Electromagnetic Ion Cyclotron Waves. Journal Of Geophysical Research: Space Physics, n/a, e2020JA028716. http://doi.org/https://doi.org/10.1029/2020JA028716 (Original work published February 2021)
Ferradas, C., Zhang, J. -C., Kistler, L., & Spence, H. (2015). Heavy-ion dominance near Cluster perigees. Journal Of Geophysical Research: Space Physics, n/a - n/a. http://doi.org/10.1002/2015JA021063 (Original work published October 2015)
Matsuda, S., Kasahara, Y., & Kletzing, C. (2016). Variation in crossover frequency of EMIC waves in plasmasphere estimated from ion cyclotron whistler waves observed by Van Allen Probe A. Geophysical Research Letters, 43, 28-34. http://doi.org/10.1002/2015GL066893 (Original work published January 2016)