In‐Situ Measurements of Ion Density in the Martian Ionosphere: Underlying Structure and Variability Observed by the MAVEN‐STATIC Instrument. - Fowler, C. M.; McFadden, J.; Hanley, K. G.; Mitchell, D. L.; Curry, S.; Jakosky, B. (Journal of Geophysical Research. Space Physics, 2022)