Gellert, R. Cosmochemistry, Max Planck Institute for Chemistry, Max Planck Society;
Rieder, R. Cosmochemistry, Max Planck Institute for Chemistry, Max Planck Society;
Ming, D. W., Morris, R. V., Gellert, R., Yen, A., Bell III, J. F., Blaney, D., et al. (2005). Geochemical and mineralogical indicators for aqueous processes on the West Spur of the Columbia Hills in Gusev crater. In Lunar and Planetary Science XXXVI. Houston: Lunar and Planetary Institute.