660s BC (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "660s BC" in English language version.

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1web.archive.org

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about.com

geography.about.com

"What Were the Largest Cities Throughout History?". Archived from the original on 2016-08-18. Retrieved 2006-03-01.

doi.org

Paschal O'Hare (2019). "Multiradionuclide evidence for an extreme solar proton event around 2,610 B.P. (~660 BC)". Proceedings of the National Academy of Sciences. 116 (13): 5961–5966. Bibcode:2019PNAS..116.5961O. doi:10.1073/pnas.1815725116. PMC 6442557. PMID 30858311.

harvard.edu

ui.adsabs.harvard.edu

Paschal O'Hare (2019). "Multiradionuclide evidence for an extreme solar proton event around 2,610 B.P. (~660 BC)". Proceedings of the National Academy of Sciences. 116 (13): 5961–5966. Bibcode:2019PNAS..116.5961O. doi:10.1073/pnas.1815725116. PMC 6442557. PMID 30858311.

nih.gov

ncbi.nlm.nih.gov

Paschal O'Hare (2019). "Multiradionuclide evidence for an extreme solar proton event around 2,610 B.P. (~660 BC)". Proceedings of the National Academy of Sciences. 116 (13): 5961–5966. Bibcode:2019PNAS..116.5961O. doi:10.1073/pnas.1815725116. PMC 6442557. PMID 30858311.

pubmed.ncbi.nlm.nih.gov

Paschal O'Hare (2019). "Multiradionuclide evidence for an extreme solar proton event around 2,610 B.P. (~660 BC)". Proceedings of the National Academy of Sciences. 116 (13): 5961–5966. Bibcode:2019PNAS..116.5961O. doi:10.1073/pnas.1815725116. PMC 6442557. PMID 30858311.

web.archive.org

"What Were the Largest Cities Throughout History?". Archived from the original on 2016-08-18. Retrieved 2006-03-01.