V. Formisano, S. Atreya, T. Encrenaz, N. Ignatiev i inni. Detection of Methane in the Atmosphere of Mars. „Science”. 306, s. 1758–1761, 2004. DOI: 10.1126/science.1101732. PMID: 15514118.
C. Oze, M. Sharma. Have olivine, will gas: Serpentinization and the abiogenic production of methane on Mars. „Geophysical Research Letters”. 32, s. L10203, 2005. DOI: 10.1029/2005GL022691.
Keppler, Frank, Vigano, Ivan, McLeod, Andy, Ott, Ulrich i inni. Ultraviolet-radiation-induced methane emissions from meteorites and the Martian atmosphere. „Nature”. 486 (7401), s. 93-96, 2012. DOI: 10.1038/nature11203.
V. Formisano, S. Atreya, T. Encrenaz, N. Ignatiev i inni. Detection of Methane in the Atmosphere of Mars. „Science”. 306, s. 1758–1761, 2004. DOI: 10.1126/science.1101732. PMID: 15514118.