Pământ de Zăpadă (Romanian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pământ de Zăpadă" in Romanian language version.

refsWebsite

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caltech.edu

gps.caltech.edu

Kirschvink, J. L. (1992). „Late Proterozoic low-latitude global glaciation: The snowball Earth”. În Schopf, J. W.; Klein, C. The Proterozoic Biosphere: A Multidisciplinary Study (PDF). Cambridge University Press. pp. 51–2.

doi.org

Allen, Philip A.; Etienne, James L. (2008). „Sedimentary challenge to Snowball Earth”. Nature Geoscience. 1 (12): 817–825. Bibcode:2008NatGe...1..817A. doi:10.1038/ngeo355.

harvard.edu

adsabs.harvard.edu

Allen, Philip A.; Etienne, James L. (2008). „Sedimentary challenge to Snowball Earth”. Nature Geoscience. 1 (12): 817–825. Bibcode:2008NatGe...1..817A. doi:10.1038/ngeo355.