Snowball Earth
Hoffman, P.F.; Schrag, D.P. (2007). Snowball Earth, in: Scientific American (Ed.) Oceans: a scientific American reader. pp. 45-56
In: Scientific American (Ed.) (2007). Oceans: a scientific American reader. University of Chicago Press: Chicago. ISBN 978-0-226-74262-5. 315 pp., more
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