Hoffman (1 Ekim 2008). "Phoenix Mars Mission—The Thermal Evolved Gas Analyzer". Journal of the American Society for Mass Spectrometry (İngilizce). 19 (10): 1377-1383. doi:10.1016/j.jasms.2008.07.015. ISSN1044-0305. PMID18715800.
nih.gov
ncbi.nlm.nih.gov
Hoffman (1 Ekim 2008). "Phoenix Mars Mission—The Thermal Evolved Gas Analyzer". Journal of the American Society for Mass Spectrometry (İngilizce). 19 (10): 1377-1383. doi:10.1016/j.jasms.2008.07.015. ISSN1044-0305. PMID18715800.
Hoffman (1 Ekim 2008). "Phoenix Mars Mission—The Thermal Evolved Gas Analyzer". Journal of the American Society for Mass Spectrometry (İngilizce). 19 (10): 1377-1383. doi:10.1016/j.jasms.2008.07.015. ISSN1044-0305. PMID18715800.