Cai, X., Yuan, T., Eccles, J. V., Pedatella, N. M., Xi, X., Ban, C., & Liu, A. Z. (2019). A numerical investigation on the variation of sodium ion and observed thermospheric sodium layer at Cerro Pachón, Chile during equinox. Journal Of Geophysical Research: Space Physics, 124, 10395-10414. doi:10.1029/2018JA025927