Dutkiewicz, A.; Volk, H.; George, S. C.; Ridley, J.; Buick, R. (2006). «Biomarkers from Huronian oil-bearing fluid inclusions: an uncontaminated record of life before the Great Oxidation Event». Geology34 (6): 437. Bibcode:2006Geo....34..437D. doi:10.1130/G22360.1.
Anbar, A.; Duan, Y.; Lyons, T.; Arnold, G.; Kendall, B.; Creaser, R.; Kaufman, A.; Gordon, G.; Scott, C.; Garvin, J.; Buick, R. (2007). «A whiff of oxygen before the great oxidation event?». Science317 (5846): 1903-1906. Bibcode:2007Sci...317.1903A. PMID17901330. doi:10.1126/science.1140325.
Navarro-González, Rafaell; McKay, Christopher P.; Nna Mvondo, Delphine (Jul 2001). «A possible nitrogen crisis for Archaean life due to reduced nitrogen fixation by lightning». Nature412 (5 July 2001): 61-64. PMID11452304. doi:10.1038/35083537.|fechaacceso= requiere |url= (ayuda)
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Dutkiewicz, A.; Volk, H.; George, S. C.; Ridley, J.; Buick, R. (2006). «Biomarkers from Huronian oil-bearing fluid inclusions: an uncontaminated record of life before the Great Oxidation Event». Geology34 (6): 437. Bibcode:2006Geo....34..437D. doi:10.1130/G22360.1.
Anbar, A.; Duan, Y.; Lyons, T.; Arnold, G.; Kendall, B.; Creaser, R.; Kaufman, A.; Gordon, G.; Scott, C.; Garvin, J.; Buick, R. (2007). «A whiff of oxygen before the great oxidation event?». Science317 (5846): 1903-1906. Bibcode:2007Sci...317.1903A. PMID17901330. doi:10.1126/science.1140325.
Navarro-González, Rafaell; McKay, Christopher P.; Nna Mvondo, Delphine (Jul 2001). «A possible nitrogen crisis for Archaean life due to reduced nitrogen fixation by lightning». Nature412 (5 July 2001): 61-64. PMID11452304. doi:10.1038/35083537.|fechaacceso= requiere |url= (ayuda)