John B. Murray et al., JB; Muller, JP; Neukum, G; Werner, SC; Van Gasselt, S; Hauber, E; Markiewicz, WJ; Head Jw, 3rd et al. (17 March 2007). “Evidence ... for a frozen sea close to Mars' equator”. Nature434 (7031): 352–355. Bibcode: 2005Natur.434..352M. doi:10.1038/nature03379. PMID15772653.
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John B. Murray et al., JB; Muller, JP; Neukum, G; Werner, SC; Van Gasselt, S; Hauber, E; Markiewicz, WJ; Head Jw, 3rd et al. (17 March 2007). “Evidence ... for a frozen sea close to Mars' equator”. Nature434 (7031): 352–355. Bibcode: 2005Natur.434..352M. doi:10.1038/nature03379. PMID15772653.
John B. Murray et al., JB; Muller, JP; Neukum, G; Werner, SC; Van Gasselt, S; Hauber, E; Markiewicz, WJ; Head Jw, 3rd et al. (17 March 2007). “Evidence ... for a frozen sea close to Mars' equator”. Nature434 (7031): 352–355. Bibcode: 2005Natur.434..352M. doi:10.1038/nature03379. PMID15772653.