(en) P. Martinerie, V.Y. Lipenkov, D. Raynaud, J. Chappellaz, N.I. Barkov et C. Lorius, « Air content paleo record in the Vostok ice core (Antarctica) : A mixed record of climatic and glaciological parameters », Journal of Geophysical Research, vol. 99, no D5, , p. 10565-10576 (DOI10.1029/93JD03223)
(en) M. Santosh et S. Omori, « CO2 windows from mantle to atmosphere: Models on ultrahigh-temperature metamorphism and speculations on the link with melting of snowball Earth », Gondwana Research, vol. 14, nos 1-2, , p. 82-96 (DOI10.1016/j.gr.2007.11.001)
(en) Al-Bīrūnī (trad. Hakim Mohammad Said), The Book Most Comprehensive In Knowledge On Precious Stones [« الجماهر في معرفة الجواهر »], Pakistan Hijra Council, (ISBN969-8016-28-7, lire en ligne)