Mars Exploration Rover engineering cameras - Maki, J.N.; Bell III, J.F.; Herkenhoff, Kenneth; Squyres, S.; Kiely, A.; Klimesh, M.; Schwochert, M.; Litwin, T.; Willson, R.; Johnson, Aaron; Maimone, M.; Baumgartner, E.; et al. (Journal of Geophysical Research E: Planets, 2003)