Chen, X. -R., Zong, Q. -G., Zhou, X. -Z., Blake, B., Wygant, J., & Kletzing, C. (2016). Van Allen Probes observation of a 360\textdegree phase shift in the flux modulation of injected electrons by ULF waves. Geophysical Research Letters. http://doi.org/10.1002/2016GL071252 (Original work published December 2016)
Chen, X. -R., Zong, Q. -G., Zhou, X. -Z., Blake, B., Wygant, J., & Kletzing, C. (2017). Van Allen Probes observation of a 360\textdegree phase shift in the flux modulation of injected electrons by ULF waves. Geophysical Research Letters, 44. http://doi.org/10.1002/2016GL071252 (Original work published February 2017)