Zachos, J. C.; Kump, L. R. (2005). «Carbon cycle feedbacks and the initiation of Antarctic glaciation in the earliest Oligocene». Global and Planetary Change. 47 1 ed. pp. 51–66. Bibcode:2005GPC....47...51Z. doi:10.1016/j.gloplacha.2005.01.001
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Zachos, J. C.; Kump, L. R. (2005). «Carbon cycle feedbacks and the initiation of Antarctic glaciation in the earliest Oligocene». Global and Planetary Change. 47 1 ed. pp. 51–66. Bibcode:2005GPC....47...51Z. doi:10.1016/j.gloplacha.2005.01.001
