Inhester, B., U. Wedeken, A. Korth, S. Perraut, and M. Stokholm. “Ground-Satellite Coordinated Study of the April 5, 1979 Events: Observation of 0+ Cyclotron Waves”. Journal of Geophysics 55, no. 1 (August 30, 1984): 134-141. Accessed October 21, 2025. https://journal.geophysicsjournal.com/JofG/article/view/110.