Kirchner, James W. (2003). "The Gaia Hypothesis: Conjectures and Refutations". Climatic Change. 58 (1–2): 21–45. doi:10.1023/A:1023494111532. S2CID1153044.
Kump, Lee R.; Pavlov, Alexander; Arthur, Michael A. (2005). "Massive Release of Hydrogen Sulfide to the Surface Ocean and Atmosphere During Intervals of Oceanic Anoxia". Geology. 33 (5): 397–400. doi:10.1130/G21295.1.
Nicholson, Arwen E.; Wilkinson, Davin M.; Williams, Hywel T. P.; Lenton, Timothy M. (2018). "Alternative mechanisms for Gaia". Journal of Theoretical Biology . 457: 249–257. doi:10.1016/j.jtbi.2018.08.032. hdl:10871/40424.
Doolittle WF, Inkpen SA. Processes and patterns of interaction as units of selection: An introduction to ITSNTS thinking. PNAS April 17, 2018 115 (16) 4006-4014
Kirchner, James W. (2003). "The Gaia Hypothesis: Conjectures and Refutations". Climatic Change. 58 (1–2): 21–45. doi:10.1023/A:1023494111532. S2CID1153044.