Gellert, R. Cosmochemistry, Max Planck Institute for Chemistry, Max Planck Society;
Madsen, M. B., Arneson, H. M., Bertelsen, P., Bell III, J. F., Binau, C. S., Gellert, R., et al. (2005). An update on results from the magnetic properties experiments on the Mars exploration rovers, Spirit and Opportunity. In Lunar and Planetary Science XXXVI. Houston: Lunar and Planetary Institute.