Mars Exploration Program 2007 Phoenix landing site selection and characteristics - Arvidson, R.; Adams, D.; Bonfiglio, G.; Christensen, P.; Cull, S.; Golombek, Matthew P.; Guinn, J.; Guinness, E.; Heet, T.; Kirk, Randolph; Knudson, A.; Malin, M.; et al. (Journal of Geophysical Research E: Planets, 2009)