Nass , H.U., and H.J. Fahr. “Plasma-Gas Interactions in Planetary Atmospheres and Their Relevance for the Terrestrial Hydrogen Budget”. Journal of Geophysics 56, no. 1 (December 13, 1984): 34-46. Accessed October 28, 2025. https://journal.geophysicsjournal.com/JofG/article/view/14.