Kirschvink, J.L. (1992). "Late Proterozoic low-latitude global glaciation: The snowball Earth". Dalam Schopf, JW, and Klein, C. The Proterozoic Biosphere: A Multidisciplinary Study(PDF). Cambridge University Press. hlm. 51–2.Pemeliharaan CS1: Banyak nama: editors list (link)
doi.org
doi.org
Allen, Philip A.; Etienne, James L. (2008). "Sedimentary challenge to Snowball Earth". Nature Geoscience. 1 (12): 817. doi:10.1038/ngeo355.
Budyko, M.I. (1969). "The effect of solar radiation variations on the climate of the earth". Tellus. 21 (5): 611–9. doi:10.1111/j.2153-3490.1969.tb00466.x.
Budyko, M.I. (1969). "The effect of solar radiation variations on the climate of the earth". Tellus. 21 (5): 611–9. doi:10.1111/j.2153-3490.1969.tb00466.x.
D.A.D. Evans (2000). "Stratigraphic, geochronological, and palaeomagnetic constraints upon the Neoproterozoic climatic paradox". American Journal of Science. 300 (5): 347–433. doi:10.2475/ajs.300.5.347.
D.A.D. Evans (2000). "Stratigraphic, geochronological, and palaeomagnetic constraints upon the Neoproterozoic climatic paradox". American Journal of Science. 300 (5): 347–433. doi:10.2475/ajs.300.5.347.
Arnaud, E. (2002). "Glacial influence on Neoproterozoic sedimentation: the Smalfjord Formation, northern Norway". Sedimentology. 49 (4): 765–88. doi:10.1046/j.1365-3091.2002.00466.x.Parameter |coauthors= yang tidak diketahui mengabaikan (|author= yang disarankan) (bantuan)