Pedatella, N. M., Fang, T. -W., Jin, H., Sassi, F., Schmidt, H., Chau, J. L., … Goncharenko, L. (2016). Multimodel comparison of the ionosphere variability during the 2009 sudden stratosphere warming. Journal Of Geophysical Research: Space Physics, 121, 7204-7225. doi:10.1002/2016JA022859