outer edge

Chen, R., Gao, X., Lu, Q., Tsurutani, B., & Wang, S. (2021). Observational Evidence for Whistler Waves Guided/Ducted by the Inner and Outer Edges of the Plasmapause. Geophysical Research Letters, n/a, e2021GL092652. http://doi.org/https://doi.org/10.1029/2021GL092652 (Original work published March 2021)