K. Cahoy, “Seasonal and temporal variability of the equatorial ionosphere with radio occultation electron density profiles from CHAMP”, in AGU Fall Meeting Abstracts, 2007, vol. 2007, p. SA13A-1063.

K. Cahoy and M. Juarez, deLa Torre, “Comparison of Ionospheric Electron Density Structure on Earth and Mars”, in AGU Fall Meeting Abstracts, 2006, vol. 2006, p. SA33A-0252.