Philips, Roger J., Davis, Brian J., Tanaka, Kenneth L., Byrne, Shane, Mellon, Michael T., Putzig, Nathaniel E., Haberle, Robert M., Kahre, Melinda A., Campbell, Bruce A., Carter, Lynn M., and Smith, Isaac B. 2011. "
Massive CO2 Ice Deposits Sequestered in the South Polar Layered Deposits of Mars."
Science, 332, (6031) 838–841.
https://doi.org/10.1126/science.1203091.