Christensen, PR (2003). «Formation of recent martian gullies through melting of extensive water-rich snow deposits.». Nature. 422 (6927): 45–8. PMID12594459. doi:10.1038/nature01436
Jakosky, Bruce M.; Carr, Michael H. (1985). «Possible precipitation of ice at low latitudes of Mars during periods of high obliquity». Nature. 315: 559–561. Bibcode:1985Natur.315..559J. doi:10.1038/315559a0
Jakosky, Bruce M.; Henderson, Bradley G.; Mellon, Michael T. (1995). «Chaotic obliquity and the nature of the Martian climate». Journal of Geophysical Research. 100: 1579–1584. Bibcode:1995JGR...100.1579J. doi:10.1029/94JE02801
Jakosky, Bruce M.; Carr, Michael H. (1985). «Possible precipitation of ice at low latitudes of Mars during periods of high obliquity». Nature. 315: 559–561. Bibcode:1985Natur.315..559J. doi:10.1038/315559a0
Jakosky, Bruce M.; Henderson, Bradley G.; Mellon, Michael T. (1995). «Chaotic obliquity and the nature of the Martian climate». Journal of Geophysical Research. 100: 1579–1584. Bibcode:1995JGR...100.1579J. doi:10.1029/94JE02801
Christensen, PR (2003). «Formation of recent martian gullies through melting of extensive water-rich snow deposits.». Nature. 422 (6927): 45–8. PMID12594459. doi:10.1038/nature01436
sciencedaily.com
MLA NASA/Jet Propulsion Laboratory (18 de dezembro de 2003). «Mars May Be Emerging From An Ice Age». ScienceDaily. Consultado em 19 de fevereiro de 2009
